390897988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{27739}}^1$

素因数の和:28027

約数の個数: 24

約数和(自身を含む): 739437440

約数和(自身を除く): 348539452

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 3523, 7046, 14092, 27739, 55478, 110956, 360607, 721214, 1442428, 7517269, 15034538, 30069076, 97724497, 195448994, 390897988]

約数ペア:

[(1, 390897988), (2, 195448994), (4, 97724497), (13, 30069076), (26, 15034538), (52, 7517269), (271, 1442428), (542, 721214), (1084, 360607), (3523, 110956), (7046, 55478), (14092, 27739)]