1688432890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{37781}}^1$

素因数の和:37938

約数の個数: 32

約数和(自身を含む): 3141951120

約数和(自身を除く): 1453518230

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 545, 1090, 4469, 8938, 22345, 37781, 44690, 75562, 188905, 377810, 1549021, 3098042, 4118129, 7745105, 8236258, 15490210, 20590645, 41181290, 168843289, 337686578, 844216445, 1688432890]

約数ペア:

[(1, 1688432890), (2, 844216445), (5, 337686578), (10, 168843289), (41, 41181290), (82, 20590645), (109, 15490210), (205, 8236258), (218, 7745105), (410, 4118129), (545, 3098042), (1090, 1549021), (4469, 377810), (8938, 188905), (22345, 75562), (37781, 44690)]