81941810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{881}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 150885504

約数和(自身を除く): 68943694

約数列:

[1, 2, 5, 10, 71, 131, 142, 262, 355, 655, 710, 881, 1310, 1762, 4405, 8810, 9301, 18602, 46505, 62551, 93010, 115411, 125102, 230822, 312755, 577055, 625510, 1154110, 8194181, 16388362, 40970905, 81941810]

約数ペア:

[(1, 81941810), (2, 40970905), (5, 16388362), (10, 8194181), (71, 1154110), (131, 625510), (142, 577055), (262, 312755), (355, 230822), (655, 125102), (710, 115411), (881, 93010), (1310, 62551), (1762, 46505), (4405, 18602), (8810, 9301)]