19465760

素因数分解:

$2^5\times 5^1\times {\mathrm{121661}}^1$

素因数の和:121676

約数の個数: 24

約数和(自身を含む): 45988236

約数和(自身を除く): 26522476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121661, 243322, 486644, 608305, 973288, 1216610, 1946576, 2433220, 3893152, 4866440, 9732880, 19465760]

約数ペア:

[(1, 19465760), (2, 9732880), (4, 4866440), (5, 3893152), (8, 2433220), (10, 1946576), (16, 1216610), (20, 973288), (32, 608305), (40, 486644), (80, 243322), (160, 121661)]