81593560

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27943}}^1$

素因数の和:28027

約数の個数: 32

約数和(自身を含む): 186107040

約数和(自身を除く): 104513480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 27943, 55886, 111772, 139715, 223544, 279430, 558860, 1117720, 2039839, 4079678, 8159356, 10199195, 16318712, 20398390, 40796780, 81593560]

約数ペア:

[(1, 81593560), (2, 40796780), (4, 20398390), (5, 16318712), (8, 10199195), (10, 8159356), (20, 4079678), (40, 2039839), (73, 1117720), (146, 558860), (292, 279430), (365, 223544), (584, 139715), (730, 111772), (1460, 55886), (2920, 27943)]