201416420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{25889}}^1$

素因数の和:26287

約数の個数: 24

約数和(自身を含む): 424078200

約数和(自身を除く): 222661780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 25889, 51778, 103556, 129445, 258890, 517780, 10070821, 20141642, 40283284, 50354105, 100708210, 201416420]

約数ペア:

[(1, 201416420), (2, 100708210), (4, 50354105), (5, 40283284), (10, 20141642), (20, 10070821), (389, 517780), (778, 258890), (1556, 129445), (1945, 103556), (3890, 51778), (7780, 25889)]