15967742020

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2052409}}^1$

素因数の和:2052807

約数の個数: 24

約数和(自身を含む): 33618475800

約数和(自身を除く): 17650733780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 2052409, 4104818, 8209636, 10262045, 20524090, 41048180, 798387101, 1596774202, 3193548404, 3991935505, 7983871010, 15967742020]

約数ペア:

[(1, 15967742020), (2, 7983871010), (4, 3991935505), (5, 3193548404), (10, 1596774202), (20, 798387101), (389, 41048180), (778, 20524090), (1556, 10262045), (1945, 8209636), (3890, 4104818), (7780, 2052409)]