20217202975

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{271}}^1\times {\mathrm{5641}}^1$

素因数の和:5968

約数の個数: 36

約数和(自身を含む): 26308059232

約数和(自身を除く): 6090856257

約数列:

[1, 5, 23, 25, 115, 271, 529, 575, 1355, 2645, 5641, 6233, 6775, 13225, 28205, 31165, 129743, 141025, 143359, 155825, 648715, 716795, 1528711, 2984089, 3243575, 3583975, 7643555, 14920445, 35160353, 38217775, 74602225, 175801765, 808688119, 879008825, 4043440595, 20217202975]

約数ペア:

[(1, 20217202975), (5, 4043440595), (23, 879008825), (25, 808688119), (115, 175801765), (271, 74602225), (529, 38217775), (575, 35160353), (1355, 14920445), (2645, 7643555), (5641, 3583975), (6233, 3243575), (6775, 2984089), (13225, 1528711), (28205, 716795), (31165, 648715), (129743, 155825), (141025, 143359)]