20412225

素因数分解:

$3^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:626

約数の個数: 36

約数和(自身を含む): 36806796

約数和(自身を除く): 16394571

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 257, 353, 771, 1059, 1285, 1765, 2313, 3177, 3855, 5295, 6425, 8825, 11565, 15885, 19275, 26475, 57825, 79425, 90721, 272163, 453605, 816489, 1360815, 2268025, 4082445, 6804075, 20412225]

約数ペア:

[(1, 20412225), (3, 6804075), (5, 4082445), (9, 2268025), (15, 1360815), (25, 816489), (45, 453605), (75, 272163), (225, 90721), (257, 79425), (353, 57825), (771, 26475), (1059, 19275), (1285, 15885), (1765, 11565), (2313, 8825), (3177, 6425), (3855, 5295)]