20294020

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5099}}^1$

素因数の和:5307

約数の個数: 24

約数和(自身を含む): 42840000

約数和(自身を除く): 22545980

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5099, 10198, 20396, 25495, 50990, 101980, 1014701, 2029402, 4058804, 5073505, 10147010, 20294020]

約数ペア:

[(1, 20294020), (2, 10147010), (4, 5073505), (5, 4058804), (10, 2029402), (20, 1014701), (199, 101980), (398, 50990), (796, 25495), (995, 20396), (1990, 10198), (3980, 5099)]