9971240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3511}}^1$

素因数の和:3593

約数の個数: 32

約数和(自身を含む): 22757760

約数和(自身を除く): 12786520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 3511, 7022, 14044, 17555, 28088, 35110, 70220, 140440, 249281, 498562, 997124, 1246405, 1994248, 2492810, 4985620, 9971240]

約数ペア:

[(1, 9971240), (2, 4985620), (4, 2492810), (5, 1994248), (8, 1246405), (10, 997124), (20, 498562), (40, 249281), (71, 140440), (142, 70220), (284, 35110), (355, 28088), (568, 17555), (710, 14044), (1420, 7022), (2840, 3511)]