90810280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1153}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 224337600

約数和(自身を除く): 133527320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 179, 220, 358, 440, 716, 895, 1153, 1432, 1790, 1969, 2306, 3580, 3938, 4612, 5765, 7160, 7876, 9224, 9845, 11530, 12683, 15752, 19690, 23060, 25366, 39380, 46120, 50732, 63415, 78760, 101464, 126830, 206387, 253660, 412774, 507320, 825548, 1031935, 1651096, 2063870, 2270257, 4127740, 4540514, 8255480, 9081028, 11351285, 18162056, 22702570, 45405140, 90810280]

約数ペア:

[(1, 90810280), (2, 45405140), (4, 22702570), (5, 18162056), (8, 11351285), (10, 9081028), (11, 8255480), (20, 4540514), (22, 4127740), (40, 2270257), (44, 2063870), (55, 1651096), (88, 1031935), (110, 825548), (179, 507320), (220, 412774), (358, 253660), (440, 206387), (716, 126830), (895, 101464), (1153, 78760), (1432, 63415), (1790, 50732), (1969, 46120), (2306, 39380), (3580, 25366), (3938, 23060), (4612, 19690), (5765, 15752), (7160, 12683), (7876, 11530), (9224, 9845)]