20402890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120017}}^1$

素因数の和:120041

約数の個数: 16

約数和(自身を含む): 38885832

約数和(自身を除く): 18482942

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120017, 240034, 600085, 1200170, 2040289, 4080578, 10201445, 20402890]

約数ペア:

[(1, 20402890), (2, 10201445), (5, 4080578), (10, 2040289), (17, 1200170), (34, 600085), (85, 240034), (170, 120017)]