201871240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 467660160

約数和(自身を除く): 265788920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 241, 344, 430, 482, 487, 860, 964, 974, 1205, 1720, 1928, 1948, 2410, 2435, 3896, 4820, 4870, 9640, 9740, 10363, 19480, 20726, 20941, 41452, 41882, 51815, 82904, 83764, 103630, 104705, 117367, 167528, 207260, 209410, 234734, 414520, 418820, 469468, 586835, 837640, 938936, 1173670, 2347340, 4694680, 5046781, 10093562, 20187124, 25233905, 40374248, 50467810, 100935620, 201871240]

約数ペア:

[(1, 201871240), (2, 100935620), (4, 50467810), (5, 40374248), (8, 25233905), (10, 20187124), (20, 10093562), (40, 5046781), (43, 4694680), (86, 2347340), (172, 1173670), (215, 938936), (241, 837640), (344, 586835), (430, 469468), (482, 418820), (487, 414520), (860, 234734), (964, 209410), (974, 207260), (1205, 167528), (1720, 117367), (1928, 104705), (1948, 103630), (2410, 83764), (2435, 82904), (3896, 51815), (4820, 41882), (4870, 41452), (9640, 20941), (9740, 20726), (10363, 19480)]