18113620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1187}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 25794860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1187, 1526, 2180, 2374, 3052, 3815, 4748, 5935, 7630, 8309, 11870, 15260, 16618, 23740, 33236, 41545, 83090, 129383, 166180, 258766, 517532, 646915, 905681, 1293830, 1811362, 2587660, 3622724, 4528405, 9056810, 18113620]

約数ペア:

[(1, 18113620), (2, 9056810), (4, 4528405), (5, 3622724), (7, 2587660), (10, 1811362), (14, 1293830), (20, 905681), (28, 646915), (35, 517532), (70, 258766), (109, 166180), (140, 129383), (218, 83090), (436, 41545), (545, 33236), (763, 23740), (1090, 16618), (1187, 15260), (1526, 11870), (2180, 8309), (2374, 7630), (3052, 5935), (3815, 4748)]