81538440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{679487}}^1$

素因数の和:679501

約数の個数: 32

約数和(自身を含む): 244615680

約数和(自身を除く): 163077240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 679487, 1358974, 2038461, 2717948, 3397435, 4076922, 5435896, 6794870, 8153844, 10192305, 13589740, 16307688, 20384610, 27179480, 40769220, 81538440]

約数ペア:

[(1, 81538440), (2, 40769220), (3, 27179480), (4, 20384610), (5, 16307688), (6, 13589740), (8, 10192305), (10, 8153844), (12, 6794870), (15, 5435896), (20, 4076922), (24, 3397435), (30, 2717948), (40, 2038461), (60, 1358974), (120, 679487)]