19790990

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6323}}^1$

素因数の和:6643

約数の個数: 16

約数和(自身を含む): 35743248

約数和(自身を除く): 15952258

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6323, 12646, 31615, 63230, 1979099, 3958198, 9895495, 19790990]

約数ペア:

[(1, 19790990), (2, 9895495), (5, 3958198), (10, 1979099), (313, 63230), (626, 31615), (1565, 12646), (3130, 6323)]