28455625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{4139}}^1$

素因数の和:4170

約数の個数: 20

約数和(自身を含む): 38800080

約数和(自身を除く): 10344455

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 4139, 6875, 20695, 45529, 103475, 227645, 517375, 1138225, 2586875, 5691125, 28455625]

約数ペア:

[(1, 28455625), (5, 5691125), (11, 2586875), (25, 1138225), (55, 517375), (125, 227645), (275, 103475), (625, 45529), (1375, 20695), (4139, 6875)]