178821890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{4423}}^1$

素因数の和:4754

約数の個数: 32

約数和(自身を含む): 347832576

約数和(自身を除く): 169010686

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 1555, 3110, 4043, 4423, 8086, 8846, 20215, 22115, 40430, 44230, 57499, 114998, 287495, 574990, 1375553, 2751106, 6877765, 13755530, 17882189, 35764378, 89410945, 178821890]

約数ペア:

[(1, 178821890), (2, 89410945), (5, 35764378), (10, 17882189), (13, 13755530), (26, 6877765), (65, 2751106), (130, 1375553), (311, 574990), (622, 287495), (1555, 114998), (3110, 57499), (4043, 44230), (4423, 40430), (8086, 22115), (8846, 20215)]