18921916420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{378893}}^1$

素因数の和:379140

約数の個数: 48

約数和(自身を含む): 43539467328

約数和(自身を除く): 24617550908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 908, 1135, 2270, 2497, 4540, 4994, 9988, 12485, 24970, 49940, 378893, 757786, 1515572, 1894465, 3788930, 4167823, 7577860, 8335646, 16671292, 20839115, 41678230, 83356460, 86008711, 172017422, 344034844, 430043555, 860087110, 946095821, 1720174220, 1892191642, 3784383284, 4730479105, 9460958210, 18921916420]

約数ペア:

[(1, 18921916420), (2, 9460958210), (4, 4730479105), (5, 3784383284), (10, 1892191642), (11, 1720174220), (20, 946095821), (22, 860087110), (44, 430043555), (55, 344034844), (110, 172017422), (220, 86008711), (227, 83356460), (454, 41678230), (908, 20839115), (1135, 16671292), (2270, 8335646), (2497, 7577860), (4540, 4167823), (4994, 3788930), (9988, 1894465), (12485, 1515572), (24970, 757786), (49940, 378893)]