23980180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1091}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 57972096

約数和(自身を除く): 33991916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1091, 1099, 1570, 2182, 2198, 3140, 4364, 4396, 5455, 5495, 7637, 10910, 10990, 15274, 21820, 21980, 30548, 38185, 76370, 152740, 171287, 342574, 685148, 856435, 1199009, 1712870, 2398018, 3425740, 4796036, 5995045, 11990090, 23980180]

約数ペア:

[(1, 23980180), (2, 11990090), (4, 5995045), (5, 4796036), (7, 3425740), (10, 2398018), (14, 1712870), (20, 1199009), (28, 856435), (35, 685148), (70, 342574), (140, 171287), (157, 152740), (314, 76370), (628, 38185), (785, 30548), (1091, 21980), (1099, 21820), (1570, 15274), (2182, 10990), (2198, 10910), (3140, 7637), (4364, 5495), (4396, 5455)]