68636890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1997}}^1$

素因数の和:2502

約数の個数: 32

約数和(自身を含む): 141554304

約数和(自身を除く): 72917414

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 491, 982, 1997, 2455, 3437, 3994, 4910, 6874, 9985, 13979, 17185, 19970, 27958, 34370, 69895, 139790, 980527, 1961054, 4902635, 6863689, 9805270, 13727378, 34318445, 68636890]

約数ペア:

[(1, 68636890), (2, 34318445), (5, 13727378), (7, 9805270), (10, 6863689), (14, 4902635), (35, 1961054), (70, 980527), (491, 139790), (982, 69895), (1997, 34370), (2455, 27958), (3437, 19970), (3994, 17185), (4910, 13979), (6874, 9985)]