28969960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16843}}^1$

素因数の和:16897

約数の個数: 32

約数和(自身を含む): 66702240

約数和(自身を除く): 37732280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16843, 33686, 67372, 84215, 134744, 168430, 336860, 673720, 724249, 1448498, 2896996, 3621245, 5793992, 7242490, 14484980, 28969960]

約数ペア:

[(1, 28969960), (2, 14484980), (4, 7242490), (5, 5793992), (8, 3621245), (10, 2896996), (20, 1448498), (40, 724249), (43, 673720), (86, 336860), (172, 168430), (215, 134744), (344, 84215), (430, 67372), (860, 33686), (1720, 16843)]