1019180

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 2162160

約数和(自身を除く): 1142980

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 389, 524, 655, 778, 1310, 1556, 1945, 2620, 3890, 7780, 50959, 101918, 203836, 254795, 509590, 1019180]

約数ペア:

[(1, 1019180), (2, 509590), (4, 254795), (5, 203836), (10, 101918), (20, 50959), (131, 7780), (262, 3890), (389, 2620), (524, 1945), (655, 1556), (778, 1310)]