51626320

素因数分解:

$2^4\times 5^1\times {\mathrm{645329}}^1$

素因数の和:645342

約数の個数: 20

約数和(自身を含む): 120031380

約数和(自身を除く): 68405060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 645329, 1290658, 2581316, 3226645, 5162632, 6453290, 10325264, 12906580, 25813160, 51626320]

約数ペア:

[(1, 51626320), (2, 25813160), (4, 12906580), (5, 10325264), (8, 6453290), (10, 5162632), (16, 3226645), (20, 2581316), (40, 1290658), (80, 645329)]