19870510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6229}}^1$

素因数の和:6276

約数の個数: 32

約数和(自身を含む): 40370400

約数和(自身を除く): 20499890

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6229, 12458, 31145, 62290, 68519, 137038, 180641, 342595, 361282, 685190, 903205, 1806410, 1987051, 3974102, 9935255, 19870510]

約数ペア:

[(1, 19870510), (2, 9935255), (5, 3974102), (10, 1987051), (11, 1806410), (22, 903205), (29, 685190), (55, 361282), (58, 342595), (110, 180641), (145, 137038), (290, 68519), (319, 62290), (638, 31145), (1595, 12458), (3190, 6229)]