72915640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{260413}}^1$

素因数の和:260431

約数の個数: 32

約数和(自身を含む): 187498080

約数和(自身を除く): 114582440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 260413, 520826, 1041652, 1302065, 1822891, 2083304, 2604130, 3645782, 5208260, 7291564, 9114455, 10416520, 14583128, 18228910, 36457820, 72915640]

約数ペア:

[(1, 72915640), (2, 36457820), (4, 18228910), (5, 14583128), (7, 10416520), (8, 9114455), (10, 7291564), (14, 5208260), (20, 3645782), (28, 2604130), (35, 2083304), (40, 1822891), (56, 1302065), (70, 1041652), (140, 520826), (280, 260413)]