19867580

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18743}}^1$

素因数の和:18805

約数の個数: 24

約数和(自身を含む): 42511392

約数和(自身を除く): 22643812

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18743, 37486, 74972, 93715, 187430, 374860, 993379, 1986758, 3973516, 4966895, 9933790, 19867580]

約数ペア:

[(1, 19867580), (2, 9933790), (4, 4966895), (5, 3973516), (10, 1986758), (20, 993379), (53, 374860), (106, 187430), (212, 93715), (265, 74972), (530, 37486), (1060, 18743)]