20419856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2029}}^1$

素因数の和:2091

約数の個数: 40

約数和(自身を含む): 43044120

約数和(自身を除く): 22624264

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 136, 148, 272, 296, 592, 629, 1258, 2029, 2516, 4058, 5032, 8116, 10064, 16232, 32464, 34493, 68986, 75073, 137972, 150146, 275944, 300292, 551888, 600584, 1201168, 1276241, 2552482, 5104964, 10209928, 20419856]

約数ペア:

[(1, 20419856), (2, 10209928), (4, 5104964), (8, 2552482), (16, 1276241), (17, 1201168), (34, 600584), (37, 551888), (68, 300292), (74, 275944), (136, 150146), (148, 137972), (272, 75073), (296, 68986), (592, 34493), (629, 32464), (1258, 16232), (2029, 10064), (2516, 8116), (4058, 5032)]