39997660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1666

約数の個数: 48

約数和(自身を含む): 89792640

約数和(自身を除く): 49794980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 1571, 2546, 3142, 5092, 6284, 6365, 7855, 12730, 15710, 25460, 29849, 31420, 59698, 105257, 119396, 149245, 210514, 298490, 421028, 526285, 596980, 1052570, 1999883, 2105140, 3999766, 7999532, 9999415, 19998830, 39997660]

約数ペア:

[(1, 39997660), (2, 19998830), (4, 9999415), (5, 7999532), (10, 3999766), (19, 2105140), (20, 1999883), (38, 1052570), (67, 596980), (76, 526285), (95, 421028), (134, 298490), (190, 210514), (268, 149245), (335, 119396), (380, 105257), (670, 59698), (1273, 31420), (1340, 29849), (1571, 25460), (2546, 15710), (3142, 12730), (5092, 7855), (6284, 6365)]