281992000

素因数分解:

$2^6\times 5^3\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:477

約数の個数: 112

約数和(自身を含む): 707288400

約数和(自身を除く): 425296400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 125, 160, 200, 202, 250, 320, 349, 400, 404, 500, 505, 698, 800, 808, 1000, 1010, 1396, 1600, 1616, 1745, 2000, 2020, 2525, 2792, 3232, 3490, 4000, 4040, 5050, 5584, 6464, 6980, 8000, 8080, 8725, 10100, 11168, 12625, 13960, 16160, 17450, 20200, 22336, 25250, 27920, 32320, 34900, 35249, 40400, 43625, 50500, 55840, 69800, 70498, 80800, 87250, 101000, 111680, 139600, 140996, 161600, 174500, 176245, 202000, 279200, 281992, 349000, 352490, 404000, 558400, 563984, 698000, 704980, 808000, 881225, 1127968, 1396000, 1409960, 1762450, 2255936, 2792000, 2819920, 3524900, 4406125, 5639840, 7049800, 8812250, 11279680, 14099600, 17624500, 28199200, 35249000, 56398400, 70498000, 140996000, 281992000]

約数ペア:

[(1, 281992000), (2, 140996000), (4, 70498000), (5, 56398400), (8, 35249000), (10, 28199200), (16, 17624500), (20, 14099600), (25, 11279680), (32, 8812250), (40, 7049800), (50, 5639840), (64, 4406125), (80, 3524900), (100, 2819920), (101, 2792000), (125, 2255936), (160, 1762450), (200, 1409960), (202, 1396000), (250, 1127968), (320, 881225), (349, 808000), (400, 704980), (404, 698000), (500, 563984), (505, 558400), (698, 404000), (800, 352490), (808, 349000), (1000, 281992), (1010, 279200), (1396, 202000), (1600, 176245), (1616, 174500), (1745, 161600), (2000, 140996), (2020, 139600), (2525, 111680), (2792, 101000), (3232, 87250), (3490, 80800), (4000, 70498), (4040, 69800), (5050, 55840), (5584, 50500), (6464, 43625), (6980, 40400), (8000, 35249), (8080, 34900), (8725, 32320), (10100, 27920), (11168, 25250), (12625, 22336), (13960, 20200), (16160, 17450)]