30531920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4831}}^1$

素因数の和:4923

約数の個数: 40

約数和(自身を含む): 71900160

約数和(自身を除く): 41368240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4831, 6320, 9662, 19324, 24155, 38648, 48310, 77296, 96620, 193240, 381649, 386480, 763298, 1526596, 1908245, 3053192, 3816490, 6106384, 7632980, 15265960, 30531920]

約数ペア:

[(1, 30531920), (2, 15265960), (4, 7632980), (5, 6106384), (8, 3816490), (10, 3053192), (16, 1908245), (20, 1526596), (40, 763298), (79, 386480), (80, 381649), (158, 193240), (316, 96620), (395, 77296), (632, 48310), (790, 38648), (1264, 24155), (1580, 19324), (3160, 9662), (4831, 6320)]