28750625

素因数分解:

$5^4\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:470

約数の個数: 20

約数和(自身を含む): 36279012

約数和(自身を除く): 7528387

約数列:

[1, 5, 25, 125, 157, 293, 625, 785, 1465, 3925, 7325, 19625, 36625, 46001, 98125, 183125, 230005, 1150025, 5750125, 28750625]

約数ペア:

[(1, 28750625), (5, 5750125), (25, 1150025), (125, 230005), (157, 183125), (293, 98125), (625, 46001), (785, 36625), (1465, 19625), (3925, 7325)]