128013012

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{457}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 336091392

約数和(自身を除く): 208078380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 251, 279, 372, 457, 502, 558, 753, 914, 1004, 1116, 1371, 1506, 1828, 2259, 2742, 3012, 4113, 4518, 5484, 7781, 8226, 9036, 14167, 15562, 16452, 23343, 28334, 31124, 42501, 46686, 56668, 70029, 85002, 93372, 114707, 127503, 140058, 170004, 229414, 255006, 280116, 344121, 458828, 510012, 688242, 1032363, 1376484, 2064726, 3555917, 4129452, 7111834, 10667751, 14223668, 21335502, 32003253, 42671004, 64006506, 128013012]

約数ペア:

[(1, 128013012), (2, 64006506), (3, 42671004), (4, 32003253), (6, 21335502), (9, 14223668), (12, 10667751), (18, 7111834), (31, 4129452), (36, 3555917), (62, 2064726), (93, 1376484), (124, 1032363), (186, 688242), (251, 510012), (279, 458828), (372, 344121), (457, 280116), (502, 255006), (558, 229414), (753, 170004), (914, 140058), (1004, 127503), (1116, 114707), (1371, 93372), (1506, 85002), (1828, 70029), (2259, 56668), (2742, 46686), (3012, 42501), (4113, 31124), (4518, 28334), (5484, 23343), (7781, 16452), (8226, 15562), (9036, 14167)]