19781950

素因数分解:

$2^1\times 5^2\times {\mathrm{383}}^1\times {\mathrm{1033}}^1$

素因数の和:1428

約数の個数: 24

約数和(自身を含む): 36926208

約数和(自身を除く): 17144258

約数列:

[1, 2, 5, 10, 25, 50, 383, 766, 1033, 1915, 2066, 3830, 5165, 9575, 10330, 19150, 25825, 51650, 395639, 791278, 1978195, 3956390, 9890975, 19781950]

約数ペア:

[(1, 19781950), (2, 9890975), (5, 3956390), (10, 1978195), (25, 791278), (50, 395639), (383, 51650), (766, 25825), (1033, 19150), (1915, 10330), (2066, 9575), (3830, 5165)]