20624420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19457}}^1$

素因数の和:19519

約数の個数: 24

約数和(自身を含む): 44130744

約数和(自身を除く): 23506324

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19457, 38914, 77828, 97285, 194570, 389140, 1031221, 2062442, 4124884, 5156105, 10312210, 20624420]

約数ペア:

[(1, 20624420), (2, 10312210), (4, 5156105), (5, 4124884), (10, 2062442), (20, 1031221), (53, 389140), (106, 194570), (212, 97285), (265, 77828), (530, 38914), (1060, 19457)]