18751440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 62853120

約数和(自身を除く): 44101680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 43, 46, 48, 60, 69, 79, 80, 86, 92, 115, 120, 129, 138, 158, 172, 184, 215, 230, 237, 240, 258, 276, 316, 344, 345, 368, 395, 430, 460, 474, 516, 552, 632, 645, 688, 690, 790, 860, 920, 948, 989, 1032, 1104, 1185, 1264, 1290, 1380, 1580, 1720, 1817, 1840, 1896, 1978, 2064, 2370, 2580, 2760, 2967, 3160, 3397, 3440, 3634, 3792, 3956, 4740, 4945, 5160, 5451, 5520, 5934, 6320, 6794, 7268, 7912, 9085, 9480, 9890, 10191, 10320, 10902, 11868, 13588, 14536, 14835, 15824, 16985, 18170, 18960, 19780, 20382, 21804, 23736, 27176, 27255, 29072, 29670, 33970, 36340, 39560, 40764, 43608, 47472, 50955, 54352, 54510, 59340, 67940, 72680, 78131, 79120, 81528, 87216, 101910, 109020, 118680, 135880, 145360, 156262, 163056, 203820, 218040, 234393, 237360, 271760, 312524, 390655, 407640, 436080, 468786, 625048, 781310, 815280, 937572, 1171965, 1250096, 1562620, 1875144, 2343930, 3125240, 3750288, 4687860, 6250480, 9375720, 18751440]

約数ペア:

[(1, 18751440), (2, 9375720), (3, 6250480), (4, 4687860), (5, 3750288), (6, 3125240), (8, 2343930), (10, 1875144), (12, 1562620), (15, 1250096), (16, 1171965), (20, 937572), (23, 815280), (24, 781310), (30, 625048), (40, 468786), (43, 436080), (46, 407640), (48, 390655), (60, 312524), (69, 271760), (79, 237360), (80, 234393), (86, 218040), (92, 203820), (115, 163056), (120, 156262), (129, 145360), (138, 135880), (158, 118680), (172, 109020), (184, 101910), (215, 87216), (230, 81528), (237, 79120), (240, 78131), (258, 72680), (276, 67940), (316, 59340), (344, 54510), (345, 54352), (368, 50955), (395, 47472), (430, 43608), (460, 40764), (474, 39560), (516, 36340), (552, 33970), (632, 29670), (645, 29072), (688, 27255), (690, 27176), (790, 23736), (860, 21804), (920, 20382), (948, 19780), (989, 18960), (1032, 18170), (1104, 16985), (1185, 15824), (1264, 14835), (1290, 14536), (1380, 13588), (1580, 11868), (1720, 10902), (1817, 10320), (1840, 10191), (1896, 9890), (1978, 9480), (2064, 9085), (2370, 7912), (2580, 7268), (2760, 6794), (2967, 6320), (3160, 5934), (3397, 5520), (3440, 5451), (3634, 5160), (3792, 4945), (3956, 4740)]