3131810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 6251904

約数和(自身を除く): 3120094

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 401, 710, 781, 802, 1562, 2005, 3905, 4010, 4411, 7810, 8822, 22055, 28471, 44110, 56942, 142355, 284710, 313181, 626362, 1565905, 3131810]

約数ペア:

[(1, 3131810), (2, 1565905), (5, 626362), (10, 313181), (11, 284710), (22, 142355), (55, 56942), (71, 44110), (110, 28471), (142, 22055), (355, 8822), (401, 7810), (710, 4411), (781, 4010), (802, 3905), (1562, 2005)]