81933940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{33857}}^1$

素因数の和:33888

約数の個数: 36

約数和(自身を含む): 189130788

約数和(自身を除く): 107196848

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 33857, 67714, 135428, 169285, 338570, 372427, 677140, 744854, 1489708, 1862135, 3724270, 4096697, 7448540, 8193394, 16386788, 20483485, 40966970, 81933940]

約数ペア:

[(1, 81933940), (2, 40966970), (4, 20483485), (5, 16386788), (10, 8193394), (11, 7448540), (20, 4096697), (22, 3724270), (44, 1862135), (55, 1489708), (110, 744854), (121, 677140), (220, 372427), (242, 338570), (484, 169285), (605, 135428), (1210, 67714), (2420, 33857)]