21169600

素因数分解:

$2^6\times 5^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 84

約数和(自身を含む): 53007768

約数和(自身を除く): 31838168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 131, 160, 200, 202, 262, 320, 400, 404, 505, 524, 655, 800, 808, 1010, 1048, 1310, 1600, 1616, 2020, 2096, 2525, 2620, 3232, 3275, 4040, 4192, 5050, 5240, 6464, 6550, 8080, 8384, 10100, 10480, 13100, 13231, 16160, 20200, 20960, 26200, 26462, 32320, 40400, 41920, 52400, 52924, 66155, 80800, 104800, 105848, 132310, 161600, 209600, 211696, 264620, 330775, 423392, 529240, 661550, 846784, 1058480, 1323100, 2116960, 2646200, 4233920, 5292400, 10584800, 21169600]

約数ペア:

[(1, 21169600), (2, 10584800), (4, 5292400), (5, 4233920), (8, 2646200), (10, 2116960), (16, 1323100), (20, 1058480), (25, 846784), (32, 661550), (40, 529240), (50, 423392), (64, 330775), (80, 264620), (100, 211696), (101, 209600), (131, 161600), (160, 132310), (200, 105848), (202, 104800), (262, 80800), (320, 66155), (400, 52924), (404, 52400), (505, 41920), (524, 40400), (655, 32320), (800, 26462), (808, 26200), (1010, 20960), (1048, 20200), (1310, 16160), (1600, 13231), (1616, 13100), (2020, 10480), (2096, 10100), (2525, 8384), (2620, 8080), (3232, 6550), (3275, 6464), (4040, 5240), (4192, 5050)]