128814240

素因数分解:

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

素因数の和:219

約数の個数: 144

約数和(自身を含む): 420523488

約数和(自身を除く): 291709248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 79, 80, 86, 96, 120, 129, 158, 160, 172, 215, 237, 240, 258, 316, 344, 395, 430, 474, 480, 516, 632, 645, 688, 790, 860, 948, 1032, 1185, 1264, 1290, 1376, 1580, 1720, 1896, 2064, 2370, 2528, 2580, 3160, 3397, 3440, 3792, 4128, 4740, 5160, 6241, 6320, 6794, 6880, 7584, 9480, 10191, 10320, 12482, 12640, 13588, 16985, 18723, 18960, 20382, 20640, 24964, 27176, 31205, 33970, 37446, 37920, 40764, 49928, 50955, 54352, 62410, 67940, 74892, 81528, 93615, 99856, 101910, 108704, 124820, 135880, 149784, 163056, 187230, 199712, 203820, 249640, 268363, 271760, 299568, 326112, 374460, 407640, 499280, 536726, 543520, 599136, 748920, 805089, 815280, 998560, 1073452, 1341815, 1497840, 1610178, 1630560, 2146904, 2683630, 2995680, 3220356, 4025445, 4293808, 5367260, 6440712, 8050890, 8587616, 10734520, 12881424, 16101780, 21469040, 25762848, 32203560, 42938080, 64407120, 128814240]

約数ペア:

[(1, 128814240), (2, 64407120), (3, 42938080), (4, 32203560), (5, 25762848), (6, 21469040), (8, 16101780), (10, 12881424), (12, 10734520), (15, 8587616), (16, 8050890), (20, 6440712), (24, 5367260), (30, 4293808), (32, 4025445), (40, 3220356), (43, 2995680), (48, 2683630), (60, 2146904), (79, 1630560), (80, 1610178), (86, 1497840), (96, 1341815), (120, 1073452), (129, 998560), (158, 815280), (160, 805089), (172, 748920), (215, 599136), (237, 543520), (240, 536726), (258, 499280), (316, 407640), (344, 374460), (395, 326112), (430, 299568), (474, 271760), (480, 268363), (516, 249640), (632, 203820), (645, 199712), (688, 187230), (790, 163056), (860, 149784), (948, 135880), (1032, 124820), (1185, 108704), (1264, 101910), (1290, 99856), (1376, 93615), (1580, 81528), (1720, 74892), (1896, 67940), (2064, 62410), (2370, 54352), (2528, 50955), (2580, 49928), (3160, 40764), (3397, 37920), (3440, 37446), (3792, 33970), (4128, 31205), (4740, 27176), (5160, 24964), (6241, 20640), (6320, 20382), (6794, 18960), (6880, 18723), (7584, 16985), (9480, 13588), (10191, 12640), (10320, 12482)]