20075080

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3079}}^1$

素因数の和:3253

約数の個数: 32

約数和(自身を含む): 45460800

約数和(自身を除く): 25385720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3079, 3260, 6158, 6520, 12316, 15395, 24632, 30790, 61580, 123160, 501877, 1003754, 2007508, 2509385, 4015016, 5018770, 10037540, 20075080]

約数ペア:

[(1, 20075080), (2, 10037540), (4, 5018770), (5, 4015016), (8, 2509385), (10, 2007508), (20, 1003754), (40, 501877), (163, 123160), (326, 61580), (652, 30790), (815, 24632), (1304, 15395), (1630, 12316), (3079, 6520), (3260, 6158)]