25218280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15377}}^1$

素因数の和:15429

約数の個数: 32

約数和(自身を含む): 58128840

約数和(自身を除く): 32910560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15377, 30754, 61508, 76885, 123016, 153770, 307540, 615080, 630457, 1260914, 2521828, 3152285, 5043656, 6304570, 12609140, 25218280]

約数ペア:

[(1, 25218280), (2, 12609140), (4, 6304570), (5, 5043656), (8, 3152285), (10, 2521828), (20, 1260914), (40, 630457), (41, 615080), (82, 307540), (164, 153770), (205, 123016), (328, 76885), (410, 61508), (820, 30754), (1640, 15377)]