15503240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20399}}^1$

素因数の和:20429

約数の個数: 32

約数和(自身を含む): 36720000

約数和(自身を除く): 21216760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20399, 40798, 81596, 101995, 163192, 203990, 387581, 407980, 775162, 815960, 1550324, 1937905, 3100648, 3875810, 7751620, 15503240]

約数ペア:

[(1, 15503240), (2, 7751620), (4, 3875810), (5, 3100648), (8, 1937905), (10, 1550324), (19, 815960), (20, 775162), (38, 407980), (40, 387581), (76, 203990), (95, 163192), (152, 101995), (190, 81596), (380, 40798), (760, 20399)]