15679804

素因数分解:

$2^2\times 7^2\times {\mathrm{79999}}^1$

素因数の和:80017

約数の個数: 18

約数和(自身を含む): 31920000

約数和(自身を除く): 16240196

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 79999, 159998, 319996, 559993, 1119986, 2239972, 3919951, 7839902, 15679804]

約数ペア:

[(1, 15679804), (2, 7839902), (4, 3919951), (7, 2239972), (14, 1119986), (28, 559993), (49, 319996), (98, 159998), (196, 79999)]