20207900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{11887}}^1$

素因数の和:11918

約数の個数: 36

約数和(自身を含む): 46434528

約数和(自身を除く): 26226628

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 11887, 23774, 47548, 59435, 118870, 202079, 237740, 297175, 404158, 594350, 808316, 1010395, 1188700, 2020790, 4041580, 5051975, 10103950, 20207900]

約数ペア:

[(1, 20207900), (2, 10103950), (4, 5051975), (5, 4041580), (10, 2020790), (17, 1188700), (20, 1010395), (25, 808316), (34, 594350), (50, 404158), (68, 297175), (85, 237740), (100, 202079), (170, 118870), (340, 59435), (425, 47548), (850, 23774), (1700, 11887)]