28710625

素因数分解:

$5^4\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:738

約数の個数: 20

約数和(自身を含む): 36438336

約数和(自身を除く): 7727711

約数列:

[1, 5, 25, 71, 125, 355, 625, 647, 1775, 3235, 8875, 16175, 44375, 45937, 80875, 229685, 404375, 1148425, 5742125, 28710625]

約数ペア:

[(1, 28710625), (5, 5742125), (25, 1148425), (71, 404375), (125, 229685), (355, 80875), (625, 45937), (647, 44375), (1775, 16175), (3235, 8875)]