642996

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 36

約数和(自身を含む): 1660932

約数和(自身を除く): 1017936

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 337, 477, 636, 674, 954, 1011, 1348, 1908, 2022, 3033, 4044, 6066, 12132, 17861, 35722, 53583, 71444, 107166, 160749, 214332, 321498, 642996]

約数ペア:

[(1, 642996), (2, 321498), (3, 214332), (4, 160749), (6, 107166), (9, 71444), (12, 53583), (18, 35722), (36, 17861), (53, 12132), (106, 6066), (159, 4044), (212, 3033), (318, 2022), (337, 1908), (477, 1348), (636, 1011), (674, 954)]