16720490

素因数分解:

$2^1\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1481}}^1$

素因数の和:2617

約数の個数: 16

約数和(自身を含む): 30143880

約数和(自身を除く): 13423390

約数列:

[1, 2, 5, 10, 1129, 1481, 2258, 2962, 5645, 7405, 11290, 14810, 1672049, 3344098, 8360245, 16720490]

約数ペア:

[(1, 16720490), (2, 8360245), (5, 3344098), (10, 1672049), (1129, 14810), (1481, 11290), (2258, 7405), (2962, 5645)]