30256420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3889}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 63718200

約数和(自身を除く): 33461780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3889, 3890, 7778, 7780, 15556, 19445, 38890, 77780, 1512821, 3025642, 6051284, 7564105, 15128210, 30256420]

約数ペア:

[(1, 30256420), (2, 15128210), (4, 7564105), (5, 6051284), (10, 3025642), (20, 1512821), (389, 77780), (778, 38890), (1556, 19445), (1945, 15556), (3889, 7780), (3890, 7778)]