1390220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5347}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 3144624

約数和(自身を除く): 1754404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5347, 10694, 21388, 26735, 53470, 69511, 106940, 139022, 278044, 347555, 695110, 1390220]

約数ペア:

[(1, 1390220), (2, 695110), (4, 347555), (5, 278044), (10, 139022), (13, 106940), (20, 69511), (26, 53470), (52, 26735), (65, 21388), (130, 10694), (260, 5347)]