207372220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{85691}}^1$

素因数の和:85722

約数の個数: 36

約数和(自身を含む): 478675512

約数和(自身を除く): 271303292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 85691, 171382, 342764, 428455, 856910, 942601, 1713820, 1885202, 3770404, 4713005, 9426010, 10368611, 18852020, 20737222, 41474444, 51843055, 103686110, 207372220]

約数ペア:

[(1, 207372220), (2, 103686110), (4, 51843055), (5, 41474444), (10, 20737222), (11, 18852020), (20, 10368611), (22, 9426010), (44, 4713005), (55, 3770404), (110, 1885202), (121, 1713820), (220, 942601), (242, 856910), (484, 428455), (605, 342764), (1210, 171382), (2420, 85691)]