19806710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:941

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 26227210

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 110, 145, 154, 203, 290, 319, 385, 406, 638, 770, 887, 1015, 1595, 1774, 2030, 2233, 3190, 4435, 4466, 6209, 8870, 9757, 11165, 12418, 19514, 22330, 25723, 31045, 48785, 51446, 62090, 68299, 97570, 128615, 136598, 180061, 257230, 282953, 341495, 360122, 565906, 682990, 900305, 1414765, 1800610, 1980671, 2829530, 3961342, 9903355, 19806710]

約数ペア:

[(1, 19806710), (2, 9903355), (5, 3961342), (7, 2829530), (10, 1980671), (11, 1800610), (14, 1414765), (22, 900305), (29, 682990), (35, 565906), (55, 360122), (58, 341495), (70, 282953), (77, 257230), (110, 180061), (145, 136598), (154, 128615), (203, 97570), (290, 68299), (319, 62090), (385, 51446), (406, 48785), (638, 31045), (770, 25723), (887, 22330), (1015, 19514), (1595, 12418), (1774, 11165), (2030, 9757), (2233, 8870), (3190, 6209), (4435, 4466)]