206421460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1474439}}^1$

素因数の和:1474455

約数の個数: 24

約数和(自身を含む): 495411840

約数和(自身を除く): 288990380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1474439, 2948878, 5897756, 7372195, 10321073, 14744390, 20642146, 29488780, 41284292, 51605365, 103210730, 206421460]

約数ペア:

[(1, 206421460), (2, 103210730), (4, 51605365), (5, 41284292), (7, 29488780), (10, 20642146), (14, 14744390), (20, 10321073), (28, 7372195), (35, 5897756), (70, 2948878), (140, 1474439)]