18342140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12917}}^1$

素因数の和:12997

約数の個数: 24

約数和(自身を含む): 39064032

約数和(自身を除く): 20721892

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12917, 25834, 51668, 64585, 129170, 258340, 917107, 1834214, 3668428, 4585535, 9171070, 18342140]

約数ペア:

[(1, 18342140), (2, 9171070), (4, 4585535), (5, 3668428), (10, 1834214), (20, 917107), (71, 258340), (142, 129170), (284, 64585), (355, 51668), (710, 25834), (1420, 12917)]