2750990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 5482080

約数和(自身を除く): 2731090

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 281, 445, 562, 890, 979, 1405, 1958, 2810, 3091, 4895, 6182, 9790, 15455, 25009, 30910, 50018, 125045, 250090, 275099, 550198, 1375495, 2750990]

約数ペア:

[(1, 2750990), (2, 1375495), (5, 550198), (10, 275099), (11, 250090), (22, 125045), (55, 50018), (89, 30910), (110, 25009), (178, 15455), (281, 9790), (445, 6182), (562, 4895), (890, 3091), (979, 2810), (1405, 1958)]