208049320

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{8039}}^1$

素因数の和:8697

約数の個数: 32

約数和(自身を含む): 468892800

約数和(自身を除く): 260843480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 8039, 12940, 16078, 25880, 32156, 40195, 64312, 80390, 160780, 321560, 5201233, 10402466, 20804932, 26006165, 41609864, 52012330, 104024660, 208049320]

約数ペア:

[(1, 208049320), (2, 104024660), (4, 52012330), (5, 41609864), (8, 26006165), (10, 20804932), (20, 10402466), (40, 5201233), (647, 321560), (1294, 160780), (2588, 80390), (3235, 64312), (5176, 40195), (6470, 32156), (8039, 25880), (12940, 16078)]