821660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{5869}}^1$

素因数の和:5885

約数の個数: 24

約数和(自身を含む): 1972320

約数和(自身を除く): 1150660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 5869, 11738, 23476, 29345, 41083, 58690, 82166, 117380, 164332, 205415, 410830, 821660]

約数ペア:

[(1, 821660), (2, 410830), (4, 205415), (5, 164332), (7, 117380), (10, 82166), (14, 58690), (20, 41083), (28, 29345), (35, 23476), (70, 11738), (140, 5869)]