7128880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8101}}^1$

素因数の和:8125

約数の個数: 40

約数和(自身を含む): 18083664

約数和(自身を除く): 10954784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 8101, 16202, 32404, 40505, 64808, 81010, 89111, 129616, 162020, 178222, 324040, 356444, 445555, 648080, 712888, 891110, 1425776, 1782220, 3564440, 7128880]

約数ペア:

[(1, 7128880), (2, 3564440), (4, 1782220), (5, 1425776), (8, 891110), (10, 712888), (11, 648080), (16, 445555), (20, 356444), (22, 324040), (40, 178222), (44, 162020), (55, 129616), (80, 89111), (88, 81010), (110, 64808), (176, 40505), (220, 32404), (440, 16202), (880, 8101)]