81787316

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{42509}}^1$

素因数の和:42563

約数の個数: 24

約数和(自身を含む): 158307240

約数和(自身を除く): 76519924

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 42509, 85018, 170036, 552617, 1105234, 1572833, 2210468, 3145666, 6291332, 20446829, 40893658, 81787316]

約数ペア:

[(1, 81787316), (2, 40893658), (4, 20446829), (13, 6291332), (26, 3145666), (37, 2210468), (52, 1572833), (74, 1105234), (148, 552617), (481, 170036), (962, 85018), (1924, 42509)]