80459240

素因数分解:

$2^3\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{1951}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 181301760

約数和(自身を除く): 100842520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1031, 1951, 2062, 3902, 4124, 5155, 7804, 8248, 9755, 10310, 15608, 19510, 20620, 39020, 41240, 78040, 2011481, 4022962, 8045924, 10057405, 16091848, 20114810, 40229620, 80459240]

約数ペア:

[(1, 80459240), (2, 40229620), (4, 20114810), (5, 16091848), (8, 10057405), (10, 8045924), (20, 4022962), (40, 2011481), (1031, 78040), (1951, 41240), (2062, 39020), (3902, 20620), (4124, 19510), (5155, 15608), (7804, 10310), (8248, 9755)]