20128015905

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^2\times {\mathrm{541}}^1\times {\mathrm{883}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 32921843136

約数和(自身を除く): 12793827231

約数列:

[1, 3, 5, 15, 53, 159, 265, 541, 795, 883, 1623, 2649, 2705, 2809, 4415, 8115, 8427, 13245, 14045, 28673, 42135, 46799, 86019, 140397, 143365, 233995, 430095, 477703, 701985, 1433109, 1519669, 2388515, 2480347, 4559007, 7165545, 7441041, 7598345, 12401735, 22795035, 25318259, 37205205, 75954777, 126591295, 379773885, 1341867727, 4025603181, 6709338635, 20128015905]

約数ペア:

[(1, 20128015905), (3, 6709338635), (5, 4025603181), (15, 1341867727), (53, 379773885), (159, 126591295), (265, 75954777), (541, 37205205), (795, 25318259), (883, 22795035), (1623, 12401735), (2649, 7598345), (2705, 7441041), (2809, 7165545), (4415, 4559007), (8115, 2480347), (8427, 2388515), (13245, 1519669), (14045, 1433109), (28673, 701985), (42135, 477703), (46799, 430095), (86019, 233995), (140397, 143365)]