90090678.000000000

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1151}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 264176640

約数和(自身を除く): 143344660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 290, 362, 580, 724, 905, 1151, 1810, 2302, 3620, 4604, 5249, 5755, 10498, 11510, 20996, 23020, 26245, 33379, 52490, 66758, 104980, 133516, 166895, 208331, 333790, 416662, 667580, 833324, 1041655, 2083310, 4166620, 6041599, 12083198, 24166396, 30207995, 60415990, 120831980]

約数ペア:

[(1, 120831980), (2, 60415990), (4, 30207995), (5, 24166396), (10, 12083198), (20, 6041599), (29, 4166620), (58, 2083310), (116, 1041655), (145, 833324), (181, 667580), (290, 416662), (362, 333790), (580, 208331), (724, 166895), (905, 133516), (1151, 104980), (1810, 66758), (2302, 52490), (3620, 33379), (4604, 26245), (5249, 23020), (5755, 20996), (10498, 11510)]