20194672

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:721

約数の個数: 40

約数和(自身を含む): 41113440

約数和(自身を除く): 20918768

約数列:

[1, 2, 4, 8, 16, 29, 58, 71, 116, 142, 232, 284, 464, 568, 613, 1136, 1226, 2059, 2452, 4118, 4904, 8236, 9808, 16472, 17777, 32944, 35554, 43523, 71108, 87046, 142216, 174092, 284432, 348184, 696368, 1262167, 2524334, 5048668, 10097336, 20194672]

約数ペア:

[(1, 20194672), (2, 10097336), (4, 5048668), (8, 2524334), (16, 1262167), (29, 696368), (58, 348184), (71, 284432), (116, 174092), (142, 142216), (232, 87046), (284, 71108), (464, 43523), (568, 35554), (613, 32944), (1136, 17777), (1226, 16472), (2059, 9808), (2452, 8236), (4118, 4904)]