77887780

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{6353}}^1$

素因数の和:6975

約数の個数: 24

約数和(自身を含む): 163856952

約数和(自身を除く): 85969172

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 2452, 3065, 6130, 6353, 12260, 12706, 25412, 31765, 63530, 127060, 3894389, 7788778, 15577556, 19471945, 38943890, 77887780]

約数ペア:

[(1, 77887780), (2, 38943890), (4, 19471945), (5, 15577556), (10, 7788778), (20, 3894389), (613, 127060), (1226, 63530), (2452, 31765), (3065, 25412), (6130, 12706), (6353, 12260)]