12953960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5309}}^1$

素因数の和:5381

約数の個数: 32

約数和(自身を含む): 29629800

約数和(自身を除く): 16675840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5309, 10618, 21236, 26545, 42472, 53090, 106180, 212360, 323849, 647698, 1295396, 1619245, 2590792, 3238490, 6476980, 12953960]

約数ペア:

[(1, 12953960), (2, 6476980), (4, 3238490), (5, 2590792), (8, 1619245), (10, 1295396), (20, 647698), (40, 323849), (61, 212360), (122, 106180), (244, 53090), (305, 42472), (488, 26545), (610, 21236), (1220, 10618), (2440, 5309)]