201995875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 263802240

約数和(自身を除く): 61806365

約数列:

[1, 5, 25, 29, 103, 125, 145, 515, 541, 725, 2575, 2705, 2987, 3625, 12875, 13525, 14935, 15689, 55723, 67625, 74675, 78445, 278615, 373375, 392225, 1393075, 1615967, 1961125, 6965375, 8079835, 40399175, 201995875]

約数ペア:

[(1, 201995875), (5, 40399175), (25, 8079835), (29, 6965375), (103, 1961125), (125, 1615967), (145, 1393075), (515, 392225), (541, 373375), (725, 278615), (2575, 78445), (2705, 74675), (2987, 67625), (3625, 55723), (12875, 15689), (13525, 14935)]