66815120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19423}}^1$

素因数の和:19479

約数の個数: 40

約数和(自身を含む): 158966016

約数和(自身を除く): 92150896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19423, 38846, 77692, 97115, 155384, 194230, 310768, 388460, 776920, 835189, 1553840, 1670378, 3340756, 4175945, 6681512, 8351890, 13363024, 16703780, 33407560, 66815120]

約数ペア:

[(1, 66815120), (2, 33407560), (4, 16703780), (5, 13363024), (8, 8351890), (10, 6681512), (16, 4175945), (20, 3340756), (40, 1670378), (43, 1553840), (80, 835189), (86, 776920), (172, 388460), (215, 310768), (344, 194230), (430, 155384), (688, 97115), (860, 77692), (1720, 38846), (3440, 19423)]