20820070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122471}}^1$

素因数の和:122495

約数の個数: 16

約数和(自身を含む): 39680928

約数和(自身を除く): 18860858

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122471, 244942, 612355, 1224710, 2082007, 4164014, 10410035, 20820070]

約数ペア:

[(1, 20820070), (2, 10410035), (5, 4164014), (10, 2082007), (17, 1224710), (34, 612355), (85, 244942), (170, 122471)]