320456440564

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{474047989}}^1$

素因数の和:474048019

約数の個数: 18

約数和(自身を含む): 607255475190

約数和(自身を除く): 286799034626

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 474047989, 948095978, 1896191956, 6162623857, 12325247714, 24650495428, 80114110141, 160228220282, 320456440564]

約数ペア:

[(1, 320456440564), (2, 160228220282), (4, 80114110141), (13, 24650495428), (26, 12325247714), (52, 6162623857), (169, 1896191956), (338, 948095978), (676, 474047989)]