176800780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{680003}}^1$

素因数の和:680025

約数の個数: 24

約数和(自身を含む): 399842352

約数和(自身を除く): 223041572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 680003, 1360006, 2720012, 3400015, 6800030, 8840039, 13600060, 17680078, 35360156, 44200195, 88400390, 176800780]

約数ペア:

[(1, 176800780), (2, 88400390), (4, 44200195), (5, 35360156), (10, 17680078), (13, 13600060), (20, 8840039), (26, 6800030), (52, 3400015), (65, 2720012), (130, 1360006), (260, 680003)]