18884080

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1723}}^1$

素因数の和:1873

約数の個数: 40

約数和(自身を含む): 44251632

約数和(自身を除く): 25367552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1723, 2192, 2740, 3446, 5480, 6892, 8615, 10960, 13784, 17230, 27568, 34460, 68920, 137840, 236051, 472102, 944204, 1180255, 1888408, 2360510, 3776816, 4721020, 9442040, 18884080]

約数ペア:

[(1, 18884080), (2, 9442040), (4, 4721020), (5, 3776816), (8, 2360510), (10, 1888408), (16, 1180255), (20, 944204), (40, 472102), (80, 236051), (137, 137840), (274, 68920), (548, 34460), (685, 27568), (1096, 17230), (1370, 13784), (1723, 10960), (2192, 8615), (2740, 6892), (3446, 5480)]