20793040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15289}}^1$

素因数の和:15319

約数の個数: 40

約数和(自身を含む): 51190920

約数和(自身を除く): 30397880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15289, 30578, 61156, 76445, 122312, 152890, 244624, 259913, 305780, 519826, 611560, 1039652, 1223120, 1299565, 2079304, 2599130, 4158608, 5198260, 10396520, 20793040]

約数ペア:

[(1, 20793040), (2, 10396520), (4, 5198260), (5, 4158608), (8, 2599130), (10, 2079304), (16, 1299565), (17, 1223120), (20, 1039652), (34, 611560), (40, 519826), (68, 305780), (80, 259913), (85, 244624), (136, 152890), (170, 122312), (272, 76445), (340, 61156), (680, 30578), (1360, 15289)]