87540640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49739}}^1$

素因数の和:49765

約数の個数: 48

約数和(自身を含む): 225620640

約数和(自身を除く): 138080000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 49739, 99478, 198956, 248695, 397912, 497390, 547129, 795824, 994780, 1094258, 1591648, 1989560, 2188516, 2735645, 3979120, 4377032, 5471290, 7958240, 8754064, 10942580, 17508128, 21885160, 43770320, 87540640]

約数ペア:

[(1, 87540640), (2, 43770320), (4, 21885160), (5, 17508128), (8, 10942580), (10, 8754064), (11, 7958240), (16, 5471290), (20, 4377032), (22, 3979120), (32, 2735645), (40, 2188516), (44, 1989560), (55, 1591648), (80, 1094258), (88, 994780), (110, 795824), (160, 547129), (176, 497390), (220, 397912), (352, 248695), (440, 198956), (880, 99478), (1760, 49739)]