9813125

素因数分解:

$5^4\times 7^1\times {\mathrm{2243}}^1$

素因数の和:2270

約数の個数: 20

約数和(自身を含む): 14020512

約数和(自身を除く): 4207387

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 2243, 4375, 11215, 15701, 56075, 78505, 280375, 392525, 1401875, 1962625, 9813125]

約数ペア:

[(1, 9813125), (5, 1962625), (7, 1401875), (25, 392525), (35, 280375), (125, 78505), (175, 56075), (625, 15701), (875, 11215), (2243, 4375)]