20218949740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{27541}}^1$

素因数の和:27679

約数の個数: 96

約数和(自身を含む): 47973316608

約数和(自身を除く): 27754366868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 71, 94, 110, 142, 188, 220, 235, 284, 355, 470, 517, 710, 781, 940, 1034, 1420, 1562, 2068, 2585, 3124, 3337, 3905, 5170, 6674, 7810, 10340, 13348, 15620, 16685, 27541, 33370, 36707, 55082, 66740, 73414, 110164, 137705, 146828, 183535, 275410, 302951, 367070, 550820, 605902, 734140, 1211804, 1294427, 1514755, 1955411, 2588854, 3029510, 3910822, 5177708, 6059020, 6472135, 7821644, 9777055, 12944270, 14238697, 19554110, 21509521, 25888540, 28477394, 39108220, 43019042, 56954788, 71193485, 86038084, 91904317, 107547605, 142386970, 183808634, 215095210, 284773940, 367617268, 430190420, 459521585, 919043170, 1010947487, 1838086340, 2021894974, 4043789948, 5054737435, 10109474870, 20218949740]

約数ペア:

[(1, 20218949740), (2, 10109474870), (4, 5054737435), (5, 4043789948), (10, 2021894974), (11, 1838086340), (20, 1010947487), (22, 919043170), (44, 459521585), (47, 430190420), (55, 367617268), (71, 284773940), (94, 215095210), (110, 183808634), (142, 142386970), (188, 107547605), (220, 91904317), (235, 86038084), (284, 71193485), (355, 56954788), (470, 43019042), (517, 39108220), (710, 28477394), (781, 25888540), (940, 21509521), (1034, 19554110), (1420, 14238697), (1562, 12944270), (2068, 9777055), (2585, 7821644), (3124, 6472135), (3337, 6059020), (3905, 5177708), (5170, 3910822), (6674, 3029510), (7810, 2588854), (10340, 1955411), (13348, 1514755), (15620, 1294427), (16685, 1211804), (27541, 734140), (33370, 605902), (36707, 550820), (55082, 367070), (66740, 302951), (73414, 275410), (110164, 183535), (137705, 146828)]