1281220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2$

素因数の和:132

約数の個数: 36

約数和(自身を含む): 2843820

約数和(自身を除く): 1562600

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 940, 1363, 2209, 2726, 4418, 5452, 6815, 8836, 11045, 13630, 22090, 27260, 44180, 64061, 128122, 256244, 320305, 640610, 1281220]

約数ペア:

[(1, 1281220), (2, 640610), (4, 320305), (5, 256244), (10, 128122), (20, 64061), (29, 44180), (47, 27260), (58, 22090), (94, 13630), (116, 11045), (145, 8836), (188, 6815), (235, 5452), (290, 4418), (470, 2726), (580, 2209), (940, 1363)]