18142700

素因数分解:

$2^2\times 5^2\times {\mathrm{419}}^1\times {\mathrm{433}}^1$

素因数の和:866

約数の個数: 36

約数和(自身を含む): 39554760

約数和(自身を除く): 21412060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 419, 433, 838, 866, 1676, 1732, 2095, 2165, 4190, 4330, 8380, 8660, 10475, 10825, 20950, 21650, 41900, 43300, 181427, 362854, 725708, 907135, 1814270, 3628540, 4535675, 9071350, 18142700]

約数ペア:

[(1, 18142700), (2, 9071350), (4, 4535675), (5, 3628540), (10, 1814270), (20, 907135), (25, 725708), (50, 362854), (100, 181427), (419, 43300), (433, 41900), (838, 21650), (866, 20950), (1676, 10825), (1732, 10475), (2095, 8660), (2165, 8380), (4190, 4330)]