78909988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{26987}}^1$

素因数の和:27051

約数の個数: 24

約数和(自身を含む): 149621472

約数和(自身を除く): 70711484

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 26987, 53974, 107948, 458779, 917558, 1160441, 1835116, 2320882, 4641764, 19727497, 39454994, 78909988]

約数ペア:

[(1, 78909988), (2, 39454994), (4, 19727497), (17, 4641764), (34, 2320882), (43, 1835116), (68, 1160441), (86, 917558), (172, 458779), (731, 107948), (1462, 53974), (2924, 26987)]