67005640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128857}}^1$

素因数の和:128881

約数の個数: 32

約数和(自身を含む): 162361080

約数和(自身を除く): 95355440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128857, 257714, 515428, 644285, 1030856, 1288570, 1675141, 2577140, 3350282, 5154280, 6700564, 8375705, 13401128, 16751410, 33502820, 67005640]

約数ペア:

[(1, 67005640), (2, 33502820), (4, 16751410), (5, 13401128), (8, 8375705), (10, 6700564), (13, 5154280), (20, 3350282), (26, 2577140), (40, 1675141), (52, 1288570), (65, 1030856), (104, 644285), (130, 515428), (260, 257714), (520, 128857)]