71573840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68821}}^1$

素因数の和:68847

約数の個数: 40

約数和(自身を含む): 179212488

約数和(自身を除く): 107638648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68821, 137642, 275284, 344105, 550568, 688210, 894673, 1101136, 1376420, 1789346, 2752840, 3578692, 4473365, 5505680, 7157384, 8946730, 14314768, 17893460, 35786920, 71573840]

約数ペア:

[(1, 71573840), (2, 35786920), (4, 17893460), (5, 14314768), (8, 8946730), (10, 7157384), (13, 5505680), (16, 4473365), (20, 3578692), (26, 2752840), (40, 1789346), (52, 1376420), (65, 1101136), (80, 894673), (104, 688210), (130, 550568), (208, 344105), (260, 275284), (520, 137642), (1040, 68821)]