18879920320

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{91757}}^1$

素因数の和:92417

約数の個数: 56

約数和(自身を含む): 45028219824

約数和(自身を除く): 26148299504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 20576, 25720, 41152, 51440, 91757, 102880, 183514, 205760, 367028, 458785, 734056, 917570, 1468112, 1835140, 2936224, 3670280, 5872448, 7340560, 14681120, 29362240, 58999751, 117999502, 235999004, 294998755, 471998008, 589997510, 943996016, 1179995020, 1887992032, 2359990040, 3775984064, 4719980080, 9439960160, 18879920320]

約数ペア:

[(1, 18879920320), (2, 9439960160), (4, 4719980080), (5, 3775984064), (8, 2359990040), (10, 1887992032), (16, 1179995020), (20, 943996016), (32, 589997510), (40, 471998008), (64, 294998755), (80, 235999004), (160, 117999502), (320, 58999751), (643, 29362240), (1286, 14681120), (2572, 7340560), (3215, 5872448), (5144, 3670280), (6430, 2936224), (10288, 1835140), (12860, 1468112), (20576, 917570), (25720, 734056), (41152, 458785), (51440, 367028), (91757, 205760), (102880, 183514)]