81067790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{261509}}^1$

素因数の和:261547

約数の個数: 16

約数和(自身を含む): 150629760

約数和(自身を除く): 69561970

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 261509, 523018, 1307545, 2615090, 8106779, 16213558, 40533895, 81067790]

約数ペア:

[(1, 81067790), (2, 40533895), (5, 16213558), (10, 8106779), (31, 2615090), (62, 1307545), (155, 523018), (310, 261509)]