406561975

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{1151}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 514252800

約数和(自身を除く): 107690825

約数列:

[1, 5, 25, 71, 199, 355, 995, 1151, 1775, 4975, 5755, 14129, 28775, 70645, 81721, 229049, 353225, 408605, 1145245, 2043025, 5726225, 16262479, 81312395, 406561975]

約数ペア:

[(1, 406561975), (5, 81312395), (25, 16262479), (71, 5726225), (199, 2043025), (355, 1145245), (995, 408605), (1151, 353225), (1775, 229049), (4975, 81721), (5755, 70645), (14129, 28775)]