19700880

素因数分解:

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

素因数の和:165

約数の個数: 160

約数和(自身を含む): 65995776

約数和(自身を除く): 46294896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 43, 46, 48, 60, 69, 80, 83, 86, 92, 115, 120, 129, 138, 166, 172, 184, 215, 230, 240, 249, 258, 276, 332, 344, 345, 368, 415, 430, 460, 498, 516, 552, 645, 664, 688, 690, 830, 860, 920, 989, 996, 1032, 1104, 1245, 1290, 1328, 1380, 1660, 1720, 1840, 1909, 1978, 1992, 2064, 2490, 2580, 2760, 2967, 3320, 3440, 3569, 3818, 3956, 3984, 4945, 4980, 5160, 5520, 5727, 5934, 6640, 7138, 7636, 7912, 9545, 9890, 9960, 10320, 10707, 11454, 11868, 14276, 14835, 15272, 15824, 17845, 19090, 19780, 19920, 21414, 22908, 23736, 28552, 28635, 29670, 30544, 35690, 38180, 39560, 42828, 45816, 47472, 53535, 57104, 57270, 59340, 71380, 76360, 79120, 82087, 85656, 91632, 107070, 114540, 118680, 142760, 152720, 164174, 171312, 214140, 229080, 237360, 246261, 285520, 328348, 410435, 428280, 458160, 492522, 656696, 820870, 856560, 985044, 1231305, 1313392, 1641740, 1970088, 2462610, 3283480, 3940176, 4925220, 6566960, 9850440, 19700880]

約数ペア:

[(1, 19700880), (2, 9850440), (3, 6566960), (4, 4925220), (5, 3940176), (6, 3283480), (8, 2462610), (10, 1970088), (12, 1641740), (15, 1313392), (16, 1231305), (20, 985044), (23, 856560), (24, 820870), (30, 656696), (40, 492522), (43, 458160), (46, 428280), (48, 410435), (60, 328348), (69, 285520), (80, 246261), (83, 237360), (86, 229080), (92, 214140), (115, 171312), (120, 164174), (129, 152720), (138, 142760), (166, 118680), (172, 114540), (184, 107070), (215, 91632), (230, 85656), (240, 82087), (249, 79120), (258, 76360), (276, 71380), (332, 59340), (344, 57270), (345, 57104), (368, 53535), (415, 47472), (430, 45816), (460, 42828), (498, 39560), (516, 38180), (552, 35690), (645, 30544), (664, 29670), (688, 28635), (690, 28552), (830, 23736), (860, 22908), (920, 21414), (989, 19920), (996, 19780), (1032, 19090), (1104, 17845), (1245, 15824), (1290, 15272), (1328, 14835), (1380, 14276), (1660, 11868), (1720, 11454), (1840, 10707), (1909, 10320), (1978, 9960), (1992, 9890), (2064, 9545), (2490, 7912), (2580, 7636), (2760, 7138), (2967, 6640), (3320, 5934), (3440, 5727), (3569, 5520), (3818, 5160), (3956, 4980), (3984, 4945)]