16641220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9349}}^1$

素因数の和:9447

約数の個数: 24

約数和(自身を含む): 35343000

約数和(自身を除く): 18701780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 9349, 18698, 37396, 46745, 93490, 186980, 832061, 1664122, 3328244, 4160305, 8320610, 16641220]

約数ペア:

[(1, 16641220), (2, 8320610), (4, 4160305), (5, 3328244), (10, 1664122), (20, 832061), (89, 186980), (178, 93490), (356, 46745), (445, 37396), (890, 18698), (1780, 9349)]