203780380

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{4759}}^1$

素因数の和:6909

約数の個数: 24

約数和(自身を含む): 428228640

約数和(自身を除く): 224448260

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 4759, 8564, 9518, 10705, 19036, 21410, 23795, 42820, 47590, 95180, 10189019, 20378038, 40756076, 50945095, 101890190, 203780380]

約数ペア:

[(1, 203780380), (2, 101890190), (4, 50945095), (5, 40756076), (10, 20378038), (20, 10189019), (2141, 95180), (4282, 47590), (4759, 42820), (8564, 23795), (9518, 21410), (10705, 19036)]