68780048

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{99971}}^1$

素因数の和:100022

約数の個数: 20

約数和(自身を含む): 136361808

約数和(自身を除く): 67581760

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 99971, 199942, 399884, 799768, 1599536, 4298753, 8597506, 17195012, 34390024, 68780048]

約数ペア:

[(1, 68780048), (2, 34390024), (4, 17195012), (8, 8597506), (16, 4298753), (43, 1599536), (86, 799768), (172, 399884), (344, 199942), (688, 99971)]