19998410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2081}}^1$

素因数の和:2150

約数の個数: 24

約数和(自身を含む): 37213668

約数和(自身を除く): 17215258

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 2081, 4162, 4805, 9610, 10405, 20810, 64511, 129022, 322555, 645110, 1999841, 3999682, 9999205, 19998410]

約数ペア:

[(1, 19998410), (2, 9999205), (5, 3999682), (10, 1999841), (31, 645110), (62, 322555), (155, 129022), (310, 64511), (961, 20810), (1922, 10405), (2081, 9610), (4162, 4805)]