131450240

素因数分解:

$2^7\times 5^1\times {\mathrm{205391}}^1$

素因数の和:205410

約数の個数: 32

約数和(自身を含む): 314249760

約数和(自身を除く): 182799520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 205391, 410782, 821564, 1026955, 1643128, 2053910, 3286256, 4107820, 6572512, 8215640, 13145024, 16431280, 26290048, 32862560, 65725120, 131450240]

約数ペア:

[(1, 131450240), (2, 65725120), (4, 32862560), (5, 26290048), (8, 16431280), (10, 13145024), (16, 8215640), (20, 6572512), (32, 4107820), (40, 3286256), (64, 2053910), (80, 1643128), (128, 1026955), (160, 821564), (320, 410782), (640, 205391)]