1913377280

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6857}}^1$

素因数の和:6989

約数の個数: 80

約数和(自身を含む): 4630384440

約数和(自身を除く): 2717007160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 872, 1090, 1280, 1744, 2180, 2560, 3488, 4360, 6857, 6976, 8720, 13714, 13952, 17440, 27428, 27904, 34285, 34880, 54856, 55808, 68570, 69760, 109712, 137140, 139520, 219424, 274280, 279040, 438848, 548560, 747413, 877696, 1097120, 1494826, 1755392, 2194240, 2989652, 3510784, 3737065, 4388480, 5979304, 7474130, 8776960, 11958608, 14948260, 17553920, 23917216, 29896520, 47834432, 59793040, 95668864, 119586080, 191337728, 239172160, 382675456, 478344320, 956688640, 1913377280]

約数ペア:

[(1, 1913377280), (2, 956688640), (4, 478344320), (5, 382675456), (8, 239172160), (10, 191337728), (16, 119586080), (20, 95668864), (32, 59793040), (40, 47834432), (64, 29896520), (80, 23917216), (109, 17553920), (128, 14948260), (160, 11958608), (218, 8776960), (256, 7474130), (320, 5979304), (436, 4388480), (512, 3737065), (545, 3510784), (640, 2989652), (872, 2194240), (1090, 1755392), (1280, 1494826), (1744, 1097120), (2180, 877696), (2560, 747413), (3488, 548560), (4360, 438848), (6857, 279040), (6976, 274280), (8720, 219424), (13714, 139520), (13952, 137140), (17440, 109712), (27428, 69760), (27904, 68570), (34285, 55808), (34880, 54856)]