168443860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647861}}^1$

素因数の和:647883

約数の個数: 24

約数和(自身を含む): 380942856

約数和(自身を除く): 212498996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 647861, 1295722, 2591444, 3239305, 6478610, 8422193, 12957220, 16844386, 33688772, 42110965, 84221930, 168443860]

約数ペア:

[(1, 168443860), (2, 84221930), (4, 42110965), (5, 33688772), (10, 16844386), (13, 12957220), (20, 8422193), (26, 6478610), (52, 3239305), (65, 2591444), (130, 1295722), (260, 647861)]