38992060

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 83966400

約数和(自身を除く): 44974340

約数列:

[1, 2, 4, 5, 10, 20, 97, 101, 194, 199, 202, 388, 398, 404, 485, 505, 796, 970, 995, 1010, 1940, 1990, 2020, 3980, 9797, 19303, 19594, 20099, 38606, 39188, 40198, 48985, 77212, 80396, 96515, 97970, 100495, 193030, 195940, 200990, 386060, 401980, 1949603, 3899206, 7798412, 9748015, 19496030, 38992060]

約数ペア:

[(1, 38992060), (2, 19496030), (4, 9748015), (5, 7798412), (10, 3899206), (20, 1949603), (97, 401980), (101, 386060), (194, 200990), (199, 195940), (202, 193030), (388, 100495), (398, 97970), (404, 96515), (485, 80396), (505, 77212), (796, 48985), (970, 40198), (995, 39188), (1010, 38606), (1940, 20099), (1990, 19594), (2020, 19303), (3980, 9797)]