78628220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{32491}}^1$

素因数の和:32522

約数の個数: 36

約数和(自身を含む): 181500312

約数和(自身を除く): 102872092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 32491, 64982, 129964, 162455, 324910, 357401, 649820, 714802, 1429604, 1787005, 3574010, 3931411, 7148020, 7862822, 15725644, 19657055, 39314110, 78628220]

約数ペア:

[(1, 78628220), (2, 39314110), (4, 19657055), (5, 15725644), (10, 7862822), (11, 7148020), (20, 3931411), (22, 3574010), (44, 1787005), (55, 1429604), (110, 714802), (121, 649820), (220, 357401), (242, 324910), (484, 162455), (605, 129964), (1210, 64982), (2420, 32491)]