18644780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12107}}^1$

素因数の和:12134

約数の個数: 48

約数和(自身を含む): 48819456

約数和(自身を除く): 30174676

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, 12107, 24214, 48428, 60535, 84749, 121070, 133177, 169498, 242140, 266354, 338996, 423745, 532708, 665885, 847490, 932239, 1331770, 1694980, 1864478, 2663540, 3728956, 4661195, 9322390, 18644780]

約数ペア:

[(1, 18644780), (2, 9322390), (4, 4661195), (5, 3728956), (7, 2663540), (10, 1864478), (11, 1694980), (14, 1331770), (20, 932239), (22, 847490), (28, 665885), (35, 532708), (44, 423745), (55, 338996), (70, 266354), (77, 242140), (110, 169498), (140, 133177), (154, 121070), (220, 84749), (308, 60535), (385, 48428), (770, 24214), (1540, 12107)]