64640420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8573}}^1$

素因数の和:8624

約数の個数: 48

約数和(自身を含む): 151245360

約数和(自身を除く): 86604940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 8573, 17146, 34292, 42865, 85730, 111449, 171460, 222898, 248617, 445796, 497234, 557245, 994468, 1114490, 1243085, 2228980, 2486170, 3232021, 4972340, 6464042, 12928084, 16160105, 32320210, 64640420]

約数ペア:

[(1, 64640420), (2, 32320210), (4, 16160105), (5, 12928084), (10, 6464042), (13, 4972340), (20, 3232021), (26, 2486170), (29, 2228980), (52, 1243085), (58, 1114490), (65, 994468), (116, 557245), (130, 497234), (145, 445796), (260, 248617), (290, 222898), (377, 171460), (580, 111449), (754, 85730), (1508, 42865), (1885, 34292), (3770, 17146), (7540, 8573)]