384402020

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{49409}}^1$

素因数の和:49807

約数の個数: 24

約数和(自身を含む): 809335800

約数和(自身を除く): 424933780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 49409, 98818, 197636, 247045, 494090, 988180, 19220101, 38440202, 76880404, 96100505, 192201010, 384402020]

約数ペア:

[(1, 384402020), (2, 192201010), (4, 96100505), (5, 76880404), (10, 38440202), (20, 19220101), (389, 988180), (778, 494090), (1556, 247045), (1945, 197636), (3890, 98818), (7780, 49409)]