1808380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12917}}^1$

素因数の和:12933

約数の個数: 24

約数和(自身を含む): 4340448

約数和(自身を除く): 2532068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12917, 25834, 51668, 64585, 90419, 129170, 180838, 258340, 361676, 452095, 904190, 1808380]

約数ペア:

[(1, 1808380), (2, 904190), (4, 452095), (5, 361676), (7, 258340), (10, 180838), (14, 129170), (20, 90419), (28, 64585), (35, 51668), (70, 25834), (140, 12917)]