77998120

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{3181}}^1$

素因数の和:3805

約数の個数: 32

約数和(自身を含む): 175837320

約数和(自身を除く): 97839200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 3181, 4904, 6130, 6362, 12260, 12724, 15905, 24520, 25448, 31810, 63620, 127240, 1949953, 3899906, 7799812, 9749765, 15599624, 19499530, 38999060, 77998120]

約数ペア:

[(1, 77998120), (2, 38999060), (4, 19499530), (5, 15599624), (8, 9749765), (10, 7799812), (20, 3899906), (40, 1949953), (613, 127240), (1226, 63620), (2452, 31810), (3065, 25448), (3181, 24520), (4904, 15905), (6130, 12724), (6362, 12260)]