428318900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{225431}}^1$

素因数の和:225464

約数の個数: 36

約数和(自身を含む): 978374880

約数和(自身を除く): 550055980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 225431, 450862, 901724, 1127155, 2254310, 4283189, 4508620, 5635775, 8566378, 11271550, 17132756, 21415945, 22543100, 42831890, 85663780, 107079725, 214159450, 428318900]

約数ペア:

[(1, 428318900), (2, 214159450), (4, 107079725), (5, 85663780), (10, 42831890), (19, 22543100), (20, 21415945), (25, 17132756), (38, 11271550), (50, 8566378), (76, 5635775), (95, 4508620), (100, 4283189), (190, 2254310), (380, 1127155), (475, 901724), (950, 450862), (1900, 225431)]