408077825

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{229903}}^1$

素因数の和:229984

約数の個数: 12

約数和(自身を含む): 513145728

約数和(自身を除く): 105067903

約数列:

[1, 5, 25, 71, 355, 1775, 229903, 1149515, 5747575, 16323113, 81615565, 408077825]

約数ペア:

[(1, 408077825), (5, 81615565), (25, 16323113), (71, 5747575), (355, 1149515), (1775, 229903)]