42421790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 78148800

約数和(自身を除く): 35727010

約数列:

[1, 2, 5, 10, 71, 142, 149, 298, 355, 401, 710, 745, 802, 1490, 2005, 4010, 10579, 21158, 28471, 52895, 56942, 59749, 105790, 119498, 142355, 284710, 298745, 597490, 4242179, 8484358, 21210895, 42421790]

約数ペア:

[(1, 42421790), (2, 21210895), (5, 8484358), (10, 4242179), (71, 597490), (142, 298745), (149, 284710), (298, 142355), (355, 119498), (401, 105790), (710, 59749), (745, 56942), (802, 52895), (1490, 28471), (2005, 21158), (4010, 10579)]