81500237

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 105235200

約数和(自身を除く): 23734963

約数列:

[1, 7, 13, 29, 89, 91, 203, 347, 377, 623, 1157, 2429, 2581, 2639, 4511, 8099, 10063, 18067, 30883, 31577, 33553, 70441, 130819, 216181, 234871, 401479, 895607, 915733, 2810353, 6269249, 11642891, 81500237]

約数ペア:

[(1, 81500237), (7, 11642891), (13, 6269249), (29, 2810353), (89, 915733), (91, 895607), (203, 401479), (347, 234871), (377, 216181), (623, 130819), (1157, 70441), (2429, 33553), (2581, 31577), (2639, 30883), (4511, 18067), (8099, 10063)]