128580868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{11719}}^1$

素因数の和:11947

約数の個数: 24

約数和(自身を含む): 243494720

約数和(自身を除く): 114913852

約数列:

[1, 2, 4, 13, 26, 52, 211, 422, 844, 2743, 5486, 10972, 11719, 23438, 46876, 152347, 304694, 609388, 2472709, 4945418, 9890836, 32145217, 64290434, 128580868]

約数ペア:

[(1, 128580868), (2, 64290434), (4, 32145217), (13, 9890836), (26, 4945418), (52, 2472709), (211, 609388), (422, 304694), (844, 152347), (2743, 46876), (5486, 23438), (10972, 11719)]