28939925

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2711}}^1$

素因数の和:2789

約数の個数: 24

約数和(自身を含む): 41699712

約数和(自身を除く): 12759787

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 2135, 2711, 10675, 13555, 18977, 67775, 94885, 165371, 474425, 826855, 1157597, 4134275, 5787985, 28939925]

約数ペア:

[(1, 28939925), (5, 5787985), (7, 4134275), (25, 1157597), (35, 826855), (61, 474425), (175, 165371), (305, 94885), (427, 67775), (1525, 18977), (2135, 13555), (2711, 10675)]