64489660

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44171}}^1$

素因数の和:44253

約数の個数: 24

約数和(自身を含む): 137286576

約数和(自身を除く): 72796916

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 44171, 88342, 176684, 220855, 441710, 883420, 3224483, 6448966, 12897932, 16122415, 32244830, 64489660]

約数ペア:

[(1, 64489660), (2, 32244830), (4, 16122415), (5, 12897932), (10, 6448966), (20, 3224483), (73, 883420), (146, 441710), (292, 220855), (365, 176684), (730, 88342), (1460, 44171)]