1990204025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{1429}}^1$

素因数の和:1598

約数の個数: 48

約数和(自身を含む): 2728954800

約数和(自身を除く): 738750775

約数列:

[1, 5, 17, 25, 29, 85, 113, 145, 425, 493, 565, 725, 1429, 1921, 2465, 2825, 3277, 7145, 9605, 12325, 16385, 24293, 35725, 41441, 48025, 55709, 81925, 121465, 161477, 207205, 278545, 607325, 704497, 807385, 1036025, 1392725, 2745109, 3522485, 4036925, 4682833, 13725545, 17612425, 23414165, 68627725, 79608161, 117070825, 398040805, 1990204025]

約数ペア:

[(1, 1990204025), (5, 398040805), (17, 117070825), (25, 79608161), (29, 68627725), (85, 23414165), (113, 17612425), (145, 13725545), (425, 4682833), (493, 4036925), (565, 3522485), (725, 2745109), (1429, 1392725), (1921, 1036025), (2465, 807385), (2825, 704497), (3277, 607325), (7145, 278545), (9605, 207205), (12325, 161477), (16385, 121465), (24293, 81925), (35725, 55709), (41441, 48025)]