161842400

素因数分解:

$2^5\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2003}}^1$

素因数の和:2124

約数の個数: 72

約数和(自身を含む): 399208824

約数和(自身を除く): 237366424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 101, 160, 200, 202, 400, 404, 505, 800, 808, 1010, 1616, 2003, 2020, 2525, 3232, 4006, 4040, 5050, 8012, 8080, 10015, 10100, 16024, 16160, 20030, 20200, 32048, 40060, 40400, 50075, 64096, 80120, 80800, 100150, 160240, 200300, 202303, 320480, 400600, 404606, 801200, 809212, 1011515, 1602400, 1618424, 2023030, 3236848, 4046060, 5057575, 6473696, 8092120, 10115150, 16184240, 20230300, 32368480, 40460600, 80921200, 161842400]

約数ペア:

[(1, 161842400), (2, 80921200), (4, 40460600), (5, 32368480), (8, 20230300), (10, 16184240), (16, 10115150), (20, 8092120), (25, 6473696), (32, 5057575), (40, 4046060), (50, 3236848), (80, 2023030), (100, 1618424), (101, 1602400), (160, 1011515), (200, 809212), (202, 801200), (400, 404606), (404, 400600), (505, 320480), (800, 202303), (808, 200300), (1010, 160240), (1616, 100150), (2003, 80800), (2020, 80120), (2525, 64096), (3232, 50075), (4006, 40400), (4040, 40060), (5050, 32048), (8012, 20200), (8080, 20030), (10015, 16160), (10100, 16024)]