20408065856

素因数分解:

$2^6\times {\mathrm{277}}^1\times {\mathrm{1151177}}^1$

素因数の和:1151466

約数の個数: 28

約数和(自身を含む): 40643490468

約数和(自身を除く): 20235424612

約数列:

[1, 2, 4, 8, 16, 32, 64, 277, 554, 1108, 2216, 4432, 8864, 17728, 1151177, 2302354, 4604708, 9209416, 18418832, 36837664, 73675328, 318876029, 637752058, 1275504116, 2551008232, 5102016464, 10204032928, 20408065856]

約数ペア:

[(1, 20408065856), (2, 10204032928), (4, 5102016464), (8, 2551008232), (16, 1275504116), (32, 637752058), (64, 318876029), (277, 73675328), (554, 36837664), (1108, 18418832), (2216, 9209416), (4432, 4604708), (8864, 2302354), (17728, 1151177)]