19165520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{751}}^1$

素因数の和:804

約数の個数: 80

約数和(自身を含む): 50353920

約数和(自身を除く): 31188400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 751, 880, 1160, 1276, 1502, 1595, 2320, 2552, 3004, 3190, 3755, 5104, 6008, 6380, 7510, 8261, 12016, 12760, 15020, 16522, 21779, 25520, 30040, 33044, 41305, 43558, 60080, 66088, 82610, 87116, 108895, 132176, 165220, 174232, 217790, 239569, 330440, 348464, 435580, 479138, 660880, 871160, 958276, 1197845, 1742320, 1916552, 2395690, 3833104, 4791380, 9582760, 19165520]

約数ペア:

[(1, 19165520), (2, 9582760), (4, 4791380), (5, 3833104), (8, 2395690), (10, 1916552), (11, 1742320), (16, 1197845), (20, 958276), (22, 871160), (29, 660880), (40, 479138), (44, 435580), (55, 348464), (58, 330440), (80, 239569), (88, 217790), (110, 174232), (116, 165220), (145, 132176), (176, 108895), (220, 87116), (232, 82610), (290, 66088), (319, 60080), (440, 43558), (464, 41305), (580, 33044), (638, 30040), (751, 25520), (880, 21779), (1160, 16522), (1276, 15020), (1502, 12760), (1595, 12016), (2320, 8261), (2552, 7510), (3004, 6380), (3190, 6008), (3755, 5104)]