199838140

素因数分解:

$2^2\times 5^1\times {\mathrm{2887}}^1\times {\mathrm{3461}}^1$

素因数の和:6357

約数の個数: 24

約数和(自身を含む): 419926752

約数和(自身を除く): 220088612

約数列:

[1, 2, 4, 5, 10, 20, 2887, 3461, 5774, 6922, 11548, 13844, 14435, 17305, 28870, 34610, 57740, 69220, 9991907, 19983814, 39967628, 49959535, 99919070, 199838140]

約数ペア:

[(1, 199838140), (2, 99919070), (4, 49959535), (5, 39967628), (10, 19983814), (20, 9991907), (2887, 69220), (3461, 57740), (5774, 34610), (6922, 28870), (11548, 17305), (13844, 14435)]