15782440

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{691}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 35624160

約数和(自身を除く): 19841720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 691, 1142, 1382, 2284, 2764, 2855, 3455, 4568, 5528, 5710, 6910, 11420, 13820, 22840, 27640, 394561, 789122, 1578244, 1972805, 3156488, 3945610, 7891220, 15782440]

約数ペア:

[(1, 15782440), (2, 7891220), (4, 3945610), (5, 3156488), (8, 1972805), (10, 1578244), (20, 789122), (40, 394561), (571, 27640), (691, 22840), (1142, 13820), (1382, 11420), (2284, 6910), (2764, 5710), (2855, 5528), (3455, 4568)]