31204240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 76209408

約数和(自身を除く): 45005168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 188, 193, 215, 235, 344, 376, 386, 430, 470, 688, 752, 772, 860, 940, 965, 1544, 1720, 1880, 1930, 2021, 3088, 3440, 3760, 3860, 4042, 7720, 8084, 8299, 9071, 10105, 15440, 16168, 16598, 18142, 20210, 32336, 33196, 36284, 40420, 41495, 45355, 66392, 72568, 80840, 82990, 90710, 132784, 145136, 161680, 165980, 181420, 331960, 362840, 390053, 663920, 725680, 780106, 1560212, 1950265, 3120424, 3900530, 6240848, 7801060, 15602120, 31204240]

約数ペア:

[(1, 31204240), (2, 15602120), (4, 7801060), (5, 6240848), (8, 3900530), (10, 3120424), (16, 1950265), (20, 1560212), (40, 780106), (43, 725680), (47, 663920), (80, 390053), (86, 362840), (94, 331960), (172, 181420), (188, 165980), (193, 161680), (215, 145136), (235, 132784), (344, 90710), (376, 82990), (386, 80840), (430, 72568), (470, 66392), (688, 45355), (752, 41495), (772, 40420), (860, 36284), (940, 33196), (965, 32336), (1544, 20210), (1720, 18142), (1880, 16598), (1930, 16168), (2021, 15440), (3088, 10105), (3440, 9071), (3760, 8299), (3860, 8084), (4042, 7720)]