156939920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:888

約数の個数: 80

約数和(自身を含む): 389225088

約数和(自身を除く): 232285168

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 167, 170, 272, 334, 340, 668, 680, 691, 835, 1336, 1360, 1382, 1670, 2672, 2764, 2839, 3340, 3455, 5528, 5678, 6680, 6910, 11056, 11356, 11747, 13360, 13820, 14195, 22712, 23494, 27640, 28390, 45424, 46988, 55280, 56780, 58735, 93976, 113560, 115397, 117470, 187952, 227120, 230794, 234940, 461588, 469880, 576985, 923176, 939760, 1153970, 1846352, 1961749, 2307940, 3923498, 4615880, 7846996, 9231760, 9808745, 15693992, 19617490, 31387984, 39234980, 78469960, 156939920]

約数ペア:

[(1, 156939920), (2, 78469960), (4, 39234980), (5, 31387984), (8, 19617490), (10, 15693992), (16, 9808745), (17, 9231760), (20, 7846996), (34, 4615880), (40, 3923498), (68, 2307940), (80, 1961749), (85, 1846352), (136, 1153970), (167, 939760), (170, 923176), (272, 576985), (334, 469880), (340, 461588), (668, 234940), (680, 230794), (691, 227120), (835, 187952), (1336, 117470), (1360, 115397), (1382, 113560), (1670, 93976), (2672, 58735), (2764, 56780), (2839, 55280), (3340, 46988), (3455, 45424), (5528, 28390), (5678, 27640), (6680, 23494), (6910, 22712), (11056, 14195), (11356, 13820), (11747, 13360)]