19616420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7723}}^1$

素因数の和:7859

約数の個数: 24

約数和(自身を含む): 41524224

約数和(自身を除く): 21907804

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7723, 15446, 30892, 38615, 77230, 154460, 980821, 1961642, 3923284, 4904105, 9808210, 19616420]

約数ペア:

[(1, 19616420), (2, 9808210), (4, 4904105), (5, 3923284), (10, 1961642), (20, 980821), (127, 154460), (254, 77230), (508, 38615), (635, 30892), (1270, 15446), (2540, 7723)]