20512222040

素因数分解:

$2^3\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{274081}}^1$

素因数の和:275963

約数の個数: 32

約数和(自身を含む): 46177335360

約数和(自身を除く): 25665113320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1871, 3742, 7484, 9355, 14968, 18710, 37420, 74840, 274081, 548162, 1096324, 1370405, 2192648, 2740810, 5481620, 10963240, 512805551, 1025611102, 2051222204, 2564027755, 4102444408, 5128055510, 10256111020, 20512222040]

約数ペア:

[(1, 20512222040), (2, 10256111020), (4, 5128055510), (5, 4102444408), (8, 2564027755), (10, 2051222204), (20, 1025611102), (40, 512805551), (1871, 10963240), (3742, 5481620), (7484, 2740810), (9355, 2192648), (14968, 1370405), (18710, 1096324), (37420, 548162), (74840, 274081)]