155122220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{9931}}^1$

素因数の和:10022

約数の個数: 48

約数和(自身を含む): 360412416

約数和(自身を除く): 205290196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 9931, 15620, 19862, 39724, 49655, 99310, 109241, 198620, 218482, 436964, 546205, 705101, 1092410, 1410202, 2184820, 2820404, 3525505, 7051010, 7756111, 14102020, 15512222, 31024444, 38780555, 77561110, 155122220]

約数ペア:

[(1, 155122220), (2, 77561110), (4, 38780555), (5, 31024444), (10, 15512222), (11, 14102020), (20, 7756111), (22, 7051010), (44, 3525505), (55, 2820404), (71, 2184820), (110, 1410202), (142, 1092410), (220, 705101), (284, 546205), (355, 436964), (710, 218482), (781, 198620), (1420, 109241), (1562, 99310), (3124, 49655), (3905, 39724), (7810, 19862), (9931, 15620)]