20660578

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 33926400

約数和(自身を除く): 13265822

約数列:

[1, 2, 23, 37, 46, 61, 74, 122, 199, 398, 851, 1403, 1702, 2257, 2806, 4514, 4577, 7363, 9154, 12139, 14726, 24278, 51911, 103822, 169349, 279197, 338698, 449143, 558394, 898286, 10330289, 20660578]

約数ペア:

[(1, 20660578), (2, 10330289), (23, 898286), (37, 558394), (46, 449143), (61, 338698), (74, 279197), (122, 169349), (199, 103822), (398, 51911), (851, 24278), (1403, 14726), (1702, 12139), (2257, 9154), (2806, 7363), (4514, 4577)]