128901320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169607}}^1$

素因数の和:169637

約数の個数: 32

約数和(自身を含む): 305294400

約数和(自身を除く): 176393080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 169607, 339214, 678428, 848035, 1356856, 1696070, 3222533, 3392140, 6445066, 6784280, 12890132, 16112665, 25780264, 32225330, 64450660, 128901320]

約数ペア:

[(1, 128901320), (2, 64450660), (4, 32225330), (5, 25780264), (8, 16112665), (10, 12890132), (19, 6784280), (20, 6445066), (38, 3392140), (40, 3222533), (76, 1696070), (95, 1356856), (152, 848035), (190, 678428), (380, 339214), (760, 169607)]