156975440

素因数分解:

$2^4\times 5^1\times {\mathrm{1962193}}^1$

素因数の和:1962206

約数の個数: 20

約数和(自身を含む): 364968084

約数和(自身を除く): 207992644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1962193, 3924386, 7848772, 9810965, 15697544, 19621930, 31395088, 39243860, 78487720, 156975440]

約数ペア:

[(1, 156975440), (2, 78487720), (4, 39243860), (5, 31395088), (8, 19621930), (10, 15697544), (16, 9810965), (20, 7848772), (40, 3924386), (80, 1962193)]