19999906930

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28168883}}^1$

素因数の和:28168961

約数の個数: 16

約数和(自身を含む): 36506873664

約数和(自身を除く): 16506966734

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28168883, 56337766, 140844415, 281688830, 1999990693, 3999981386, 9999953465, 19999906930]

約数ペア:

[(1, 19999906930), (2, 9999953465), (5, 3999981386), (10, 1999990693), (71, 281688830), (142, 140844415), (355, 56337766), (710, 28168883)]