1991620430

素因数分解:

$2^1\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{155717}}^1$

素因数の和:157003

約数の個数: 16

約数和(自身を含む): 3587742720

約数和(自身を除く): 1596122290

約数列:

[1, 2, 5, 10, 1279, 2558, 6395, 12790, 155717, 311434, 778585, 1557170, 199162043, 398324086, 995810215, 1991620430]

約数ペア:

[(1, 1991620430), (2, 995810215), (5, 398324086), (10, 199162043), (1279, 1557170), (2558, 778585), (6395, 311434), (12790, 155717)]