61809220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{25541}}^1$

素因数の和:25572

約数の個数: 36

約数和(自身を含む): 142677612

約数和(自身を除く): 80868392

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 25541, 51082, 102164, 127705, 255410, 280951, 510820, 561902, 1123804, 1404755, 2809510, 3090461, 5619020, 6180922, 12361844, 15452305, 30904610, 61809220]

約数ペア:

[(1, 61809220), (2, 30904610), (4, 15452305), (5, 12361844), (10, 6180922), (11, 5619020), (20, 3090461), (22, 2809510), (44, 1404755), (55, 1123804), (110, 561902), (121, 510820), (220, 280951), (242, 255410), (484, 127705), (605, 102164), (1210, 51082), (2420, 25541)]