20155760

素因数分解:

$2^4\times 5^1\times {\mathrm{251947}}^1$

素因数の和:251960

約数の個数: 20

約数和(自身を含む): 46862328

約数和(自身を除く): 26706568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251947, 503894, 1007788, 1259735, 2015576, 2519470, 4031152, 5038940, 10077880, 20155760]

約数ペア:

[(1, 20155760), (2, 10077880), (4, 5038940), (5, 4031152), (8, 2519470), (10, 2015576), (16, 1259735), (20, 1007788), (40, 503894), (80, 251947)]