28103080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16339}}^1$

素因数の和:16393

約数の個数: 32

約数和(自身を含む): 64706400

約数和(自身を除く): 36603320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16339, 32678, 65356, 81695, 130712, 163390, 326780, 653560, 702577, 1405154, 2810308, 3512885, 5620616, 7025770, 14051540, 28103080]

約数ペア:

[(1, 28103080), (2, 14051540), (4, 7025770), (5, 5620616), (8, 3512885), (10, 2810308), (20, 1405154), (40, 702577), (43, 653560), (86, 326780), (172, 163390), (215, 130712), (344, 81695), (430, 65356), (860, 32678), (1720, 16339)]