128773160

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{40751}}^1$

素因数の和:40841

約数の個数: 32

約数和(自身を含む): 293414400

約数和(自身を除く): 164641240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 40751, 81502, 163004, 203755, 326008, 407510, 815020, 1630040, 3219329, 6438658, 12877316, 16096645, 25754632, 32193290, 64386580, 128773160]

約数ペア:

[(1, 128773160), (2, 64386580), (4, 32193290), (5, 25754632), (8, 16096645), (10, 12877316), (20, 6438658), (40, 3219329), (79, 1630040), (158, 815020), (316, 407510), (395, 326008), (632, 203755), (790, 163004), (1580, 81502), (3160, 40751)]