72857420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{23203}}^1$

素因数の和:23369

約数の個数: 24

約数和(自身を含む): 153981744

約数和(自身を除く): 81124324

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 23203, 46406, 92812, 116015, 232030, 464060, 3642871, 7285742, 14571484, 18214355, 36428710, 72857420]

約数ペア:

[(1, 72857420), (2, 36428710), (4, 18214355), (5, 14571484), (10, 7285742), (20, 3642871), (157, 464060), (314, 232030), (628, 116015), (785, 92812), (1570, 46406), (3140, 23203)]