30813125

素因数分解:

$5^4\times 7^1\times {\mathrm{7043}}^1$

素因数の和:7070

約数の個数: 20

約数和(自身を含む): 44010912

約数和(自身を除く): 13197787

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 7043, 35215, 49301, 176075, 246505, 880375, 1232525, 4401875, 6162625, 30813125]

約数ペア:

[(1, 30813125), (5, 6162625), (7, 4401875), (25, 1232525), (35, 880375), (125, 246505), (175, 176075), (625, 49301), (875, 35215), (4375, 7043)]