20180216

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4049}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 43740000

約数和(自身を除く): 23559784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4049, 4984, 8098, 16196, 28343, 32392, 56686, 113372, 226744, 360361, 720722, 1441444, 2522527, 2882888, 5045054, 10090108, 20180216]

約数ペア:

[(1, 20180216), (2, 10090108), (4, 5045054), (7, 2882888), (8, 2522527), (14, 1441444), (28, 720722), (56, 360361), (89, 226744), (178, 113372), (356, 56686), (623, 32392), (712, 28343), (1246, 16196), (2492, 8098), (4049, 4984)]