256111440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 320

約数和(自身を含む): 923940864

約数和(自身を除く): 667829424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 43, 46, 48, 52, 60, 65, 69, 78, 80, 83, 86, 92, 104, 115, 120, 129, 130, 138, 156, 166, 172, 184, 195, 208, 215, 230, 240, 249, 258, 260, 276, 299, 312, 332, 344, 345, 368, 390, 415, 430, 460, 498, 516, 520, 552, 559, 598, 624, 645, 664, 688, 690, 780, 830, 860, 897, 920, 989, 996, 1032, 1040, 1079, 1104, 1118, 1196, 1245, 1290, 1328, 1380, 1495, 1560, 1660, 1677, 1720, 1794, 1840, 1909, 1978, 1992, 2064, 2158, 2236, 2392, 2490, 2580, 2760, 2795, 2967, 2990, 3120, 3237, 3320, 3354, 3440, 3569, 3588, 3818, 3956, 3984, 4316, 4472, 4485, 4784, 4945, 4980, 5160, 5395, 5520, 5590, 5727, 5934, 5980, 6474, 6640, 6708, 7138, 7176, 7636, 7912, 8385, 8632, 8944, 8970, 9545, 9890, 9960, 10320, 10707, 10790, 11180, 11454, 11868, 11960, 12857, 12948, 13416, 14276, 14352, 14835, 15272, 15824, 16185, 16770, 17264, 17845, 17940, 19090, 19780, 19920, 21414, 21580, 22360, 22908, 23736, 23920, 24817, 25714, 25896, 26832, 28552, 28635, 29670, 30544, 32370, 33540, 35690, 35880, 38180, 38571, 39560, 42828, 43160, 44720, 45816, 46397, 47472, 49634, 51428, 51792, 53535, 57104, 57270, 59340, 64285, 64740, 67080, 71380, 71760, 74451, 76360, 77142, 79120, 82087, 85656, 86320, 91632, 92794, 99268, 102856, 107070, 114540, 118680, 124085, 128570, 129480, 134160, 139191, 142760, 148902, 152720, 154284, 164174, 171312, 185588, 192855, 198536, 205712, 214140, 229080, 231985, 237360, 246261, 248170, 257140, 258960, 278382, 285520, 297804, 308568, 328348, 371176, 372255, 385710, 397072, 410435, 428280, 458160, 463970, 492522, 496340, 514280, 556764, 595608, 617136, 656696, 695955, 742352, 744510, 771420, 820870, 856560, 927940, 985044, 992680, 1028560, 1067131, 1113528, 1191216, 1231305, 1313392, 1391910, 1489020, 1542840, 1641740, 1855880, 1970088, 1985360, 2134262, 2227056, 2462610, 2783820, 2978040, 3085680, 3201393, 3283480, 3711760, 3940176, 4268524, 4925220, 5335655, 5567640, 5956080, 6402786, 6566960, 8537048, 9850440, 10671310, 11135280, 12805572, 16006965, 17074096, 19700880, 21342620, 25611144, 32013930, 42685240, 51222288, 64027860, 85370480, 128055720, 256111440]

約数ペア:

[(1, 256111440), (2, 128055720), (3, 85370480), (4, 64027860), (5, 51222288), (6, 42685240), (8, 32013930), (10, 25611144), (12, 21342620), (13, 19700880), (15, 17074096), (16, 16006965), (20, 12805572), (23, 11135280), (24, 10671310), (26, 9850440), (30, 8537048), (39, 6566960), (40, 6402786), (43, 5956080), (46, 5567640), (48, 5335655), (52, 4925220), (60, 4268524), (65, 3940176), (69, 3711760), (78, 3283480), (80, 3201393), (83, 3085680), (86, 2978040), (92, 2783820), (104, 2462610), (115, 2227056), (120, 2134262), (129, 1985360), (130, 1970088), (138, 1855880), (156, 1641740), (166, 1542840), (172, 1489020), (184, 1391910), (195, 1313392), (208, 1231305), (215, 1191216), (230, 1113528), (240, 1067131), (249, 1028560), (258, 992680), (260, 985044), (276, 927940), (299, 856560), (312, 820870), (332, 771420), (344, 744510), (345, 742352), (368, 695955), (390, 656696), (415, 617136), (430, 595608), (460, 556764), (498, 514280), (516, 496340), (520, 492522), (552, 463970), (559, 458160), (598, 428280), (624, 410435), (645, 397072), (664, 385710), (688, 372255), (690, 371176), (780, 328348), (830, 308568), (860, 297804), (897, 285520), (920, 278382), (989, 258960), (996, 257140), (1032, 248170), (1040, 246261), (1079, 237360), (1104, 231985), (1118, 229080), (1196, 214140), (1245, 205712), (1290, 198536), (1328, 192855), (1380, 185588), (1495, 171312), (1560, 164174), (1660, 154284), (1677, 152720), (1720, 148902), (1794, 142760), (1840, 139191), (1909, 134160), (1978, 129480), (1992, 128570), (2064, 124085), (2158, 118680), (2236, 114540), (2392, 107070), (2490, 102856), (2580, 99268), (2760, 92794), (2795, 91632), (2967, 86320), (2990, 85656), (3120, 82087), (3237, 79120), (3320, 77142), (3354, 76360), (3440, 74451), (3569, 71760), (3588, 71380), (3818, 67080), (3956, 64740), (3984, 64285), (4316, 59340), (4472, 57270), (4485, 57104), (4784, 53535), (4945, 51792), (4980, 51428), (5160, 49634), (5395, 47472), (5520, 46397), (5590, 45816), (5727, 44720), (5934, 43160), (5980, 42828), (6474, 39560), (6640, 38571), (6708, 38180), (7138, 35880), (7176, 35690), (7636, 33540), (7912, 32370), (8385, 30544), (8632, 29670), (8944, 28635), (8970, 28552), (9545, 26832), (9890, 25896), (9960, 25714), (10320, 24817), (10707, 23920), (10790, 23736), (11180, 22908), (11454, 22360), (11868, 21580), (11960, 21414), (12857, 19920), (12948, 19780), (13416, 19090), (14276, 17940), (14352, 17845), (14835, 17264), (15272, 16770), (15824, 16185)]