2145620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1591

約数の個数: 24

約数和(自身を含む): 4572288

約数和(自身を除く): 2426668

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1511, 3022, 6044, 7555, 15110, 30220, 107281, 214562, 429124, 536405, 1072810, 2145620]

約数ペア:

[(1, 2145620), (2, 1072810), (4, 536405), (5, 429124), (10, 214562), (20, 107281), (71, 30220), (142, 15110), (284, 7555), (355, 6044), (710, 3022), (1420, 1511)]