20580875

素因数分解:

$5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 30091776

約数和(自身を除く): 9510901

約数列:

[1, 5, 7, 25, 35, 43, 125, 175, 215, 301, 547, 875, 1075, 1505, 2735, 3829, 5375, 7525, 13675, 19145, 23521, 37625, 68375, 95725, 117605, 164647, 478625, 588025, 823235, 2940125, 4116175, 20580875]

約数ペア:

[(1, 20580875), (5, 4116175), (7, 2940125), (25, 823235), (35, 588025), (43, 478625), (125, 164647), (175, 117605), (215, 95725), (301, 68375), (547, 37625), (875, 23521), (1075, 19145), (1505, 13675), (2735, 7525), (3829, 5375)]