131772020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{1361}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 285562368

約数和(自身を除く): 153790348

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 103, 188, 206, 235, 412, 470, 515, 940, 1030, 1361, 2060, 2722, 4841, 5444, 6805, 9682, 13610, 19364, 24205, 27220, 48410, 63967, 96820, 127934, 140183, 255868, 280366, 319835, 560732, 639670, 700915, 1279340, 1401830, 2803660, 6588601, 13177202, 26354404, 32943005, 65886010, 131772020]

約数ペア:

[(1, 131772020), (2, 65886010), (4, 32943005), (5, 26354404), (10, 13177202), (20, 6588601), (47, 2803660), (94, 1401830), (103, 1279340), (188, 700915), (206, 639670), (235, 560732), (412, 319835), (470, 280366), (515, 255868), (940, 140183), (1030, 127934), (1361, 96820), (2060, 63967), (2722, 48410), (4841, 27220), (5444, 24205), (6805, 19364), (9682, 13610)]