19467140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12641}}^1$

素因数の和:12668

約数の個数: 48

約数和(自身を含む): 50972544

約数和(自身を除く): 31505404

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, 12641, 25282, 50564, 63205, 88487, 126410, 139051, 176974, 252820, 278102, 353948, 442435, 556204, 695255, 884870, 973357, 1390510, 1769740, 1946714, 2781020, 3893428, 4866785, 9733570, 19467140]

約数ペア:

[(1, 19467140), (2, 9733570), (4, 4866785), (5, 3893428), (7, 2781020), (10, 1946714), (11, 1769740), (14, 1390510), (20, 973357), (22, 884870), (28, 695255), (35, 556204), (44, 442435), (55, 353948), (70, 278102), (77, 252820), (110, 176974), (140, 139051), (154, 126410), (220, 88487), (308, 63205), (385, 50564), (770, 25282), (1540, 12641)]