4019800

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 9486000

約数和(自身を除く): 5466200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 199, 200, 202, 398, 404, 505, 796, 808, 995, 1010, 1592, 1990, 2020, 2525, 3980, 4040, 4975, 5050, 7960, 9950, 10100, 19900, 20099, 20200, 39800, 40198, 80396, 100495, 160792, 200990, 401980, 502475, 803960, 1004950, 2009900, 4019800]

約数ペア:

[(1, 4019800), (2, 2009900), (4, 1004950), (5, 803960), (8, 502475), (10, 401980), (20, 200990), (25, 160792), (40, 100495), (50, 80396), (100, 40198), (101, 39800), (199, 20200), (200, 20099), (202, 19900), (398, 10100), (404, 9950), (505, 7960), (796, 5050), (808, 4975), (995, 4040), (1010, 3980), (1592, 2525), (1990, 2020)]