27808220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11491}}^1$

素因数の和:11522

約数の個数: 36

約数和(自身を含む): 64194312

約数和(自身を除く): 36386092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11491, 22982, 45964, 57455, 114910, 126401, 229820, 252802, 505604, 632005, 1264010, 1390411, 2528020, 2780822, 5561644, 6952055, 13904110, 27808220]

約数ペア:

[(1, 27808220), (2, 13904110), (4, 6952055), (5, 5561644), (10, 2780822), (11, 2528020), (20, 1390411), (22, 1264010), (44, 632005), (55, 505604), (110, 252802), (121, 229820), (220, 126401), (242, 114910), (484, 57455), (605, 45964), (1210, 22982), (2420, 11491)]