18700270

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 34787808

約数和(自身を除く): 16087538

約数列:

[1, 2, 5, 10, 43, 86, 157, 215, 277, 314, 430, 554, 785, 1385, 1570, 2770, 6751, 11911, 13502, 23822, 33755, 43489, 59555, 67510, 86978, 119110, 217445, 434890, 1870027, 3740054, 9350135, 18700270]

約数ペア:

[(1, 18700270), (2, 9350135), (5, 3740054), (10, 1870027), (43, 434890), (86, 217445), (157, 119110), (215, 86978), (277, 67510), (314, 59555), (430, 43489), (554, 33755), (785, 23822), (1385, 13502), (1570, 11911), (2770, 6751)]