78469960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:886

約数の個数: 64

約数和(自身を含む): 188334720

約数和(自身を除く): 109864760

約数列:

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

約数ペア:

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