20178880028

素因数分解:

$2^2\times {\mathrm{2239}}^1\times {\mathrm{2253113}}^1$

素因数の和:2255356

約数の個数: 12

約数和(自身を含む): 35328827520

約数和(自身を除く): 15149947492

約数列:

[1, 2, 4, 2239, 4478, 8956, 2253113, 4506226, 9012452, 5044720007, 10089440014, 20178880028]

約数ペア:

[(1, 20178880028), (2, 10089440014), (4, 5044720007), (2239, 9012452), (4478, 4506226), (8956, 2253113)]