18783380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12197}}^1$

素因数の和:12224

約数の個数: 48

約数和(自身を含む): 49182336

約数和(自身を除く): 30398956

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12197, 24394, 48788, 60985, 85379, 121970, 134167, 170758, 243940, 268334, 341516, 426895, 536668, 670835, 853790, 939169, 1341670, 1707580, 1878338, 2683340, 3756676, 4695845, 9391690, 18783380]

約数ペア:

[(1, 18783380), (2, 9391690), (4, 4695845), (5, 3756676), (7, 2683340), (10, 1878338), (11, 1707580), (14, 1341670), (20, 939169), (22, 853790), (28, 670835), (35, 536668), (44, 426895), (55, 341516), (70, 268334), (77, 243940), (110, 170758), (140, 134167), (154, 121970), (220, 85379), (308, 60985), (385, 48788), (770, 24394), (1540, 12197)]