1971820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5189}}^1$

素因数の和:5217

約数の個数: 24

約数和(自身を含む): 4359600

約数和(自身を除く): 2387780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5189, 10378, 20756, 25945, 51890, 98591, 103780, 197182, 394364, 492955, 985910, 1971820]

約数ペア:

[(1, 1971820), (2, 985910), (4, 492955), (5, 394364), (10, 197182), (19, 103780), (20, 98591), (38, 51890), (76, 25945), (95, 20756), (190, 10378), (380, 5189)]