20189842460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2903}}^1\times {\mathrm{8087}}^1$

素因数の和:11042

約数の個数: 48

約数和(自身を含む): 43404996096

約数和(自身を除く): 23215153636

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2903, 5806, 8087, 11612, 14515, 16174, 29030, 32348, 40435, 58060, 80870, 124829, 161740, 249658, 347741, 499316, 624145, 695482, 1248290, 1390964, 1738705, 2496580, 3477410, 6954820, 23476561, 46953122, 93906244, 117382805, 234765610, 469531220, 1009492123, 2018984246, 4037968492, 5047460615, 10094921230, 20189842460]

約数ペア:

[(1, 20189842460), (2, 10094921230), (4, 5047460615), (5, 4037968492), (10, 2018984246), (20, 1009492123), (43, 469531220), (86, 234765610), (172, 117382805), (215, 93906244), (430, 46953122), (860, 23476561), (2903, 6954820), (5806, 3477410), (8087, 2496580), (11612, 1738705), (14515, 1390964), (16174, 1248290), (29030, 695482), (32348, 624145), (40435, 499316), (58060, 347741), (80870, 249658), (124829, 161740)]