1289143726

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{390413}}^1$

素因数の和:390555

約数の個数: 16

約数和(自身を含む): 2098865664

約数和(自身を除く): 809721938

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 390413, 780826, 5075369, 10150738, 49582451, 99164902, 644571863, 1289143726]

約数ペア:

[(1, 1289143726), (2, 644571863), (13, 99164902), (26, 49582451), (127, 10150738), (254, 5075369), (1651, 780826), (3302, 390413)]