16808975

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 23040192

約数和(自身を除く): 6231217

約数列:

[1, 5, 23, 25, 31, 41, 115, 155, 205, 529, 575, 713, 775, 943, 1025, 1271, 2645, 3565, 4715, 6355, 13225, 16399, 17825, 21689, 23575, 29233, 31775, 81995, 108445, 146165, 409975, 542225, 672359, 730825, 3361795, 16808975]

約数ペア:

[(1, 16808975), (5, 3361795), (23, 730825), (25, 672359), (31, 542225), (41, 409975), (115, 146165), (155, 108445), (205, 81995), (529, 31775), (575, 29233), (713, 23575), (775, 21689), (943, 17825), (1025, 16399), (1271, 13225), (2645, 6355), (3565, 4715)]