61685620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 133539840

約数和(自身を除く): 71854220

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 137, 188, 235, 274, 470, 479, 548, 685, 940, 958, 1370, 1916, 2395, 2740, 4790, 6439, 9580, 12878, 22513, 25756, 32195, 45026, 64390, 65623, 90052, 112565, 128780, 131246, 225130, 262492, 328115, 450260, 656230, 1312460, 3084281, 6168562, 12337124, 15421405, 30842810, 61685620]

約数ペア:

[(1, 61685620), (2, 30842810), (4, 15421405), (5, 12337124), (10, 6168562), (20, 3084281), (47, 1312460), (94, 656230), (137, 450260), (188, 328115), (235, 262492), (274, 225130), (470, 131246), (479, 128780), (548, 112565), (685, 90052), (940, 65623), (958, 64390), (1370, 45026), (1916, 32195), (2395, 25756), (2740, 22513), (4790, 12878), (6439, 9580)]