81142915

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 114960384

約数和(自身を除く): 33817469

約数列:

[1, 5, 7, 35, 47, 107, 235, 329, 461, 535, 749, 1645, 2305, 3227, 3745, 5029, 16135, 21667, 25145, 35203, 49327, 108335, 151669, 176015, 246635, 345289, 758345, 1726445, 2318369, 11591845, 16228583, 81142915]

約数ペア:

[(1, 81142915), (5, 16228583), (7, 11591845), (35, 2318369), (47, 1726445), (107, 758345), (235, 345289), (329, 246635), (461, 176015), (535, 151669), (749, 108335), (1645, 49327), (2305, 35203), (3227, 25145), (3745, 21667), (5029, 16135)]