77955760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23767}}^1$

素因数の和:23821

約数の個数: 40

約数和(自身を含む): 185675616

約数和(自身を除く): 107719856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 23767, 47534, 95068, 118835, 190136, 237670, 380272, 475340, 950680, 974447, 1901360, 1948894, 3897788, 4872235, 7795576, 9744470, 15591152, 19488940, 38977880, 77955760]

約数ペア:

[(1, 77955760), (2, 38977880), (4, 19488940), (5, 15591152), (8, 9744470), (10, 7795576), (16, 4872235), (20, 3897788), (40, 1948894), (41, 1901360), (80, 974447), (82, 950680), (164, 475340), (205, 380272), (328, 237670), (410, 190136), (656, 118835), (820, 95068), (1640, 47534), (3280, 23767)]