81557488

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{83563}}^1$

素因数の和:83632

約数の個数: 20

約数和(自身を含む): 160610008

約数和(自身を除く): 79052520

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 83563, 167126, 334252, 668504, 1337008, 5097343, 10194686, 20389372, 40778744, 81557488]

約数ペア:

[(1, 81557488), (2, 40778744), (4, 20389372), (8, 10194686), (16, 5097343), (61, 1337008), (122, 668504), (244, 334252), (488, 167126), (976, 83563)]