20708240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36979}}^1$

素因数の和:36999

約数の個数: 40

約数和(自身を含む): 55026240

約数和(自身を除く): 34318000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36979, 73958, 147916, 184895, 258853, 295832, 369790, 517706, 591664, 739580, 1035412, 1294265, 1479160, 2070824, 2588530, 2958320, 4141648, 5177060, 10354120, 20708240]

約数ペア:

[(1, 20708240), (2, 10354120), (4, 5177060), (5, 4141648), (7, 2958320), (8, 2588530), (10, 2070824), (14, 1479160), (16, 1294265), (20, 1035412), (28, 739580), (35, 591664), (40, 517706), (56, 369790), (70, 295832), (80, 258853), (112, 184895), (140, 147916), (280, 73958), (560, 36979)]