660217820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{5821}}^1$

素因数の和:5990

約数の個数: 48

約数和(自身を含む): 1426063968

約数和(自身を除く): 765846148

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 107, 212, 214, 265, 428, 530, 535, 1060, 1070, 2140, 5671, 5821, 11342, 11642, 22684, 23284, 28355, 29105, 56710, 58210, 113420, 116420, 308513, 617026, 622847, 1234052, 1245694, 1542565, 2491388, 3085130, 3114235, 6170260, 6228470, 12456940, 33010891, 66021782, 132043564, 165054455, 330108910, 660217820]

約数ペア:

[(1, 660217820), (2, 330108910), (4, 165054455), (5, 132043564), (10, 66021782), (20, 33010891), (53, 12456940), (106, 6228470), (107, 6170260), (212, 3114235), (214, 3085130), (265, 2491388), (428, 1542565), (530, 1245694), (535, 1234052), (1060, 622847), (1070, 617026), (2140, 308513), (5671, 116420), (5821, 113420), (11342, 58210), (11642, 56710), (22684, 29105), (23284, 28355)]