123899920

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4679}}^1$

素因数の和:5023

約数の個数: 40

約数和(自身を含む): 288999360

約数和(自身を除く): 165099440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2648, 3310, 4679, 5296, 6620, 9358, 13240, 18716, 23395, 26480, 37432, 46790, 74864, 93580, 187160, 374320, 1548749, 3097498, 6194996, 7743745, 12389992, 15487490, 24779984, 30974980, 61949960, 123899920]

約数ペア:

[(1, 123899920), (2, 61949960), (4, 30974980), (5, 24779984), (8, 15487490), (10, 12389992), (16, 7743745), (20, 6194996), (40, 3097498), (80, 1548749), (331, 374320), (662, 187160), (1324, 93580), (1655, 74864), (2648, 46790), (3310, 37432), (4679, 26480), (5296, 23395), (6620, 18716), (9358, 13240)]