18916480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2687}}^1$

素因数の和:2717

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 30435200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 2687, 3520, 5374, 7040, 10748, 13435, 21496, 26870, 29557, 42992, 53740, 59114, 85984, 107480, 118228, 147785, 171968, 214960, 236456, 295570, 343936, 429920, 472912, 591140, 859840, 945824, 1182280, 1719680, 1891648, 2364560, 3783296, 4729120, 9458240, 18916480]

約数ペア:

[(1, 18916480), (2, 9458240), (4, 4729120), (5, 3783296), (8, 2364560), (10, 1891648), (11, 1719680), (16, 1182280), (20, 945824), (22, 859840), (32, 591140), (40, 472912), (44, 429920), (55, 343936), (64, 295570), (80, 236456), (88, 214960), (110, 171968), (128, 147785), (160, 118228), (176, 107480), (220, 85984), (320, 59114), (352, 53740), (440, 42992), (640, 29557), (704, 26870), (880, 21496), (1408, 13435), (1760, 10748), (2687, 7040), (3520, 5374)]