221628080

素因数分解:

$2^4\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3041}}^1$

素因数の和:3965

約数の個数: 40

約数和(自身を含む): 516020544

約数和(自身を除く): 294392464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911, 1822, 3041, 3644, 4555, 6082, 7288, 9110, 12164, 14576, 15205, 18220, 24328, 30410, 36440, 48656, 60820, 72880, 121640, 243280, 2770351, 5540702, 11081404, 13851755, 22162808, 27703510, 44325616, 55407020, 110814040, 221628080]

約数ペア:

[(1, 221628080), (2, 110814040), (4, 55407020), (5, 44325616), (8, 27703510), (10, 22162808), (16, 13851755), (20, 11081404), (40, 5540702), (80, 2770351), (911, 243280), (1822, 121640), (3041, 72880), (3644, 60820), (4555, 48656), (6082, 36440), (7288, 30410), (9110, 24328), (12164, 18220), (14576, 15205)]