28717940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 62318592

約数和(自身を除く): 33600652

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 137, 188, 223, 235, 274, 446, 470, 548, 685, 892, 940, 1115, 1370, 2230, 2740, 4460, 6439, 10481, 12878, 20962, 25756, 30551, 32195, 41924, 52405, 61102, 64390, 104810, 122204, 128780, 152755, 209620, 305510, 611020, 1435897, 2871794, 5743588, 7179485, 14358970, 28717940]

約数ペア:

[(1, 28717940), (2, 14358970), (4, 7179485), (5, 5743588), (10, 2871794), (20, 1435897), (47, 611020), (94, 305510), (137, 209620), (188, 152755), (223, 128780), (235, 122204), (274, 104810), (446, 64390), (470, 61102), (548, 52405), (685, 41924), (892, 32195), (940, 30551), (1115, 25756), (1370, 20962), (2230, 12878), (2740, 10481), (4460, 6439)]