18390260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7727}}^1$

素因数の和:7760

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 28348684

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 7727, 15454, 30908, 38635, 54089, 77270, 108178, 131359, 154540, 216356, 262718, 270445, 525436, 540890, 656795, 919513, 1081780, 1313590, 1839026, 2627180, 3678052, 4597565, 9195130, 18390260]

約数ペア:

[(1, 18390260), (2, 9195130), (4, 4597565), (5, 3678052), (7, 2627180), (10, 1839026), (14, 1313590), (17, 1081780), (20, 919513), (28, 656795), (34, 540890), (35, 525436), (68, 270445), (70, 262718), (85, 216356), (119, 154540), (140, 131359), (170, 108178), (238, 77270), (340, 54089), (476, 38635), (595, 30908), (1190, 15454), (2380, 7727)]