25872220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{10691}}^1$

素因数の和:10722

約数の個数: 36

約数和(自身を含む): 59725512

約数和(自身を除く): 33853292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 10691, 21382, 42764, 53455, 106910, 117601, 213820, 235202, 470404, 588005, 1176010, 1293611, 2352020, 2587222, 5174444, 6468055, 12936110, 25872220]

約数ペア:

[(1, 25872220), (2, 12936110), (4, 6468055), (5, 5174444), (10, 2587222), (11, 2352020), (20, 1293611), (22, 1176010), (44, 588005), (55, 470404), (110, 235202), (121, 213820), (220, 117601), (242, 106910), (484, 53455), (605, 42764), (1210, 21382), (2420, 10691)]