71289320

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{13009}}^1$

素因数の和:13157

約数の個数: 32

約数和(自身を含む): 161584200

約数和(自身を除く): 90294880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 13009, 26018, 52036, 65045, 104072, 130090, 260180, 520360, 1782233, 3564466, 7128932, 8911165, 14257864, 17822330, 35644660, 71289320]

約数ペア:

[(1, 71289320), (2, 35644660), (4, 17822330), (5, 14257864), (8, 8911165), (10, 7128932), (20, 3564466), (40, 1782233), (137, 520360), (274, 260180), (548, 130090), (685, 104072), (1096, 65045), (1370, 52036), (2740, 26018), (5480, 13009)]