19128340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12421}}^1$

素因数の和:12448

約数の個数: 48

約数和(自身を含む): 50085504

約数和(自身を除く): 30957164

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, 12421, 24842, 49684, 62105, 86947, 124210, 136631, 173894, 248420, 273262, 347788, 434735, 546524, 683155, 869470, 956417, 1366310, 1738940, 1912834, 2732620, 3825668, 4782085, 9564170, 19128340]

約数ペア:

[(1, 19128340), (2, 9564170), (4, 4782085), (5, 3825668), (7, 2732620), (10, 1912834), (11, 1738940), (14, 1366310), (20, 956417), (22, 869470), (28, 683155), (35, 546524), (44, 434735), (55, 347788), (70, 273262), (77, 248420), (110, 173894), (140, 136631), (154, 124210), (220, 86947), (308, 62105), (385, 49684), (770, 24842), (1540, 12421)]