78876754

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1242

約数の個数: 24

約数和(自身を含む): 130535244

約数和(自身を除く): 51658490

約数列:

[1, 2, 11, 22, 121, 242, 397, 794, 821, 1642, 4367, 8734, 9031, 18062, 48037, 96074, 99341, 198682, 325937, 651874, 3585307, 7170614, 39438377, 78876754]

約数ペア:

[(1, 78876754), (2, 39438377), (11, 7170614), (22, 3585307), (121, 651874), (242, 325937), (397, 198682), (794, 99341), (821, 96074), (1642, 48037), (4367, 18062), (8734, 9031)]