27778855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 10605785

約数列:

[1, 5, 13, 19, 65, 83, 95, 247, 271, 415, 1079, 1235, 1355, 1577, 3523, 5149, 5395, 7885, 17615, 20501, 22493, 25745, 66937, 102505, 112465, 292409, 334685, 427367, 1462045, 2136835, 5555771, 27778855]

約数ペア:

[(1, 27778855), (5, 5555771), (13, 2136835), (19, 1462045), (65, 427367), (83, 334685), (95, 292409), (247, 112465), (271, 102505), (415, 66937), (1079, 25745), (1235, 22493), (1355, 20501), (1577, 17615), (3523, 7885), (5149, 5395)]