51282220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{21191}}^1$

素因数の和:21222

約数の個数: 36

約数和(自身を含む): 118378512

約数和(自身を除く): 67096292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 21191, 42382, 84764, 105955, 211910, 233101, 423820, 466202, 932404, 1165505, 2331010, 2564111, 4662020, 5128222, 10256444, 12820555, 25641110, 51282220]

約数ペア:

[(1, 51282220), (2, 25641110), (4, 12820555), (5, 10256444), (10, 5128222), (11, 4662020), (20, 2564111), (22, 2331010), (44, 1165505), (55, 932404), (110, 466202), (121, 423820), (220, 233101), (242, 211910), (484, 105955), (605, 84764), (1210, 42382), (2420, 21191)]