81200540

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{8807}}^1$

素因数の和:9277

約数の個数: 24

約数和(自身を含む): 170910432

約数和(自身を除く): 89709892

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 4610, 8807, 9220, 17614, 35228, 44035, 88070, 176140, 4060027, 8120054, 16240108, 20300135, 40600270, 81200540]

約数ペア:

[(1, 81200540), (2, 40600270), (4, 20300135), (5, 16240108), (10, 8120054), (20, 4060027), (461, 176140), (922, 88070), (1844, 44035), (2305, 35228), (4610, 17614), (8807, 9220)]