15663640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9551}}^1$

素因数の和:9603

約数の個数: 32

約数和(自身を含む): 36106560

約数和(自身を除く): 20442920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 9551, 19102, 38204, 47755, 76408, 95510, 191020, 382040, 391591, 783182, 1566364, 1957955, 3132728, 3915910, 7831820, 15663640]

約数ペア:

[(1, 15663640), (2, 7831820), (4, 3915910), (5, 3132728), (8, 1957955), (10, 1566364), (20, 783182), (40, 391591), (41, 382040), (82, 191020), (164, 95510), (205, 76408), (328, 47755), (410, 38204), (820, 19102), (1640, 9551)]