19883180

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7589}}^1$

素因数の和:7729

約数の個数: 24

約数和(自身を含む): 42078960

約数和(自身を除く): 22195780

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7589, 15178, 30356, 37945, 75890, 151780, 994159, 1988318, 3976636, 4970795, 9941590, 19883180]

約数ペア:

[(1, 19883180), (2, 9941590), (4, 4970795), (5, 3976636), (10, 1988318), (20, 994159), (131, 151780), (262, 75890), (524, 37945), (655, 30356), (1310, 15178), (2620, 7589)]