427490180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1644193}}^1$

素因数の和:1644215

約数の個数: 24

約数和(自身を含む): 966786072

約数和(自身を除く): 539295892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1644193, 3288386, 6576772, 8220965, 16441930, 21374509, 32883860, 42749018, 85498036, 106872545, 213745090, 427490180]

約数ペア:

[(1, 427490180), (2, 213745090), (4, 106872545), (5, 85498036), (10, 42749018), (13, 32883860), (20, 21374509), (26, 16441930), (52, 8220965), (65, 6576772), (130, 3288386), (260, 1644193)]