155800720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7759}}^1$

素因数の和:8023

約数の個数: 40

約数和(自身を含む): 363726720

約数和(自身を除く): 207926000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 7759, 10040, 15518, 20080, 31036, 38795, 62072, 77590, 124144, 155180, 310360, 620720, 1947509, 3895018, 7790036, 9737545, 15580072, 19475090, 31160144, 38950180, 77900360, 155800720]

約数ペア:

[(1, 155800720), (2, 77900360), (4, 38950180), (5, 31160144), (8, 19475090), (10, 15580072), (16, 9737545), (20, 7790036), (40, 3895018), (80, 1947509), (251, 620720), (502, 310360), (1004, 155180), (1255, 124144), (2008, 77590), (2510, 62072), (4016, 38795), (5020, 31036), (7759, 20080), (10040, 15518)]