51695440

素因数分解:

$2^4\times 5^1\times {\mathrm{646193}}^1$

素因数の和:646206

約数の個数: 20

約数和(自身を含む): 120192084

約数和(自身を除く): 68496644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 646193, 1292386, 2584772, 3230965, 5169544, 6461930, 10339088, 12923860, 25847720, 51695440]

約数ペア:

[(1, 51695440), (2, 25847720), (4, 12923860), (5, 10339088), (8, 6461930), (10, 5169544), (16, 3230965), (20, 2584772), (40, 1292386), (80, 646193)]