65725120

素因数分解:

$2^6\times 5^1\times {\mathrm{205391}}^1$

素因数の和:205408

約数の個数: 28

約数和(自身を含む): 156508704

約数和(自身を除く): 90783584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205391, 410782, 821564, 1026955, 1643128, 2053910, 3286256, 4107820, 6572512, 8215640, 13145024, 16431280, 32862560, 65725120]

約数ペア:

[(1, 65725120), (2, 32862560), (4, 16431280), (5, 13145024), (8, 8215640), (10, 6572512), (16, 4107820), (20, 3286256), (32, 2053910), (40, 1643128), (64, 1026955), (80, 821564), (160, 410782), (320, 205391)]