38972895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 72199680

約数和(自身を除く): 33226785

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 67, 95, 157, 195, 201, 247, 285, 335, 471, 741, 785, 871, 1005, 1235, 1273, 2041, 2355, 2613, 2983, 3705, 3819, 4355, 6123, 6365, 8949, 10205, 10519, 13065, 14915, 16549, 19095, 30615, 31557, 38779, 44745, 49647, 52595, 82745, 116337, 136747, 157785, 193895, 199861, 248235, 410241, 581685, 599583, 683735, 999305, 2051205, 2598193, 2997915, 7794579, 12990965, 38972895]

約数ペア:

[(1, 38972895), (3, 12990965), (5, 7794579), (13, 2997915), (15, 2598193), (19, 2051205), (39, 999305), (57, 683735), (65, 599583), (67, 581685), (95, 410241), (157, 248235), (195, 199861), (201, 193895), (247, 157785), (285, 136747), (335, 116337), (471, 82745), (741, 52595), (785, 49647), (871, 44745), (1005, 38779), (1235, 31557), (1273, 30615), (2041, 19095), (2355, 16549), (2613, 14915), (2983, 13065), (3705, 10519), (3819, 10205), (4355, 8949), (6123, 6365)]