78885640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 183980160

約数和(自身を除く): 105094520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 164, 205, 206, 328, 410, 412, 467, 515, 820, 824, 934, 1030, 1640, 1868, 2060, 2335, 3736, 4120, 4223, 4670, 8446, 9340, 16892, 18680, 19147, 21115, 33784, 38294, 42230, 48101, 76588, 84460, 95735, 96202, 153176, 168920, 191470, 192404, 240505, 382940, 384808, 481010, 765880, 962020, 1924040, 1972141, 3944282, 7888564, 9860705, 15777128, 19721410, 39442820, 78885640]

約数ペア:

[(1, 78885640), (2, 39442820), (4, 19721410), (5, 15777128), (8, 9860705), (10, 7888564), (20, 3944282), (40, 1972141), (41, 1924040), (82, 962020), (103, 765880), (164, 481010), (205, 384808), (206, 382940), (328, 240505), (410, 192404), (412, 191470), (467, 168920), (515, 153176), (820, 96202), (824, 95735), (934, 84460), (1030, 76588), (1640, 48101), (1868, 42230), (2060, 38294), (2335, 33784), (3736, 21115), (4120, 19147), (4223, 18680), (4670, 16892), (8446, 9340)]