399429575

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{4561}}^1$

素因数の和:4715

約数の個数: 24

約数和(自身を含む): 515907456

約数和(自身を除く): 116477881

約数列:

[1, 5, 25, 31, 113, 155, 565, 775, 2825, 3503, 4561, 17515, 22805, 87575, 114025, 141391, 515393, 706955, 2576965, 3534775, 12884825, 15977183, 79885915, 399429575]

約数ペア:

[(1, 399429575), (5, 79885915), (25, 15977183), (31, 12884825), (113, 3534775), (155, 2576965), (565, 706955), (775, 515393), (2825, 141391), (3503, 114025), (4561, 87575), (17515, 22805)]