20672590

素因数分解:

$2^1\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2129}}^1$

素因数の和:3107

約数の個数: 16

約数和(自身を含む): 37266480

約数和(自身を除く): 16593890

約数列:

[1, 2, 5, 10, 971, 1942, 2129, 4258, 4855, 9710, 10645, 21290, 2067259, 4134518, 10336295, 20672590]

約数ペア:

[(1, 20672590), (2, 10336295), (5, 4134518), (10, 2067259), (971, 21290), (1942, 10645), (2129, 9710), (4258, 4855)]