15978980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{46997}}^1$

素因数の和:47023

約数の個数: 24

約数和(自身を含む): 35530488

約数和(自身を除く): 19551508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 46997, 93994, 187988, 234985, 469970, 798949, 939940, 1597898, 3195796, 3994745, 7989490, 15978980]

約数ペア:

[(1, 15978980), (2, 7989490), (4, 3994745), (5, 3195796), (10, 1597898), (17, 939940), (20, 798949), (34, 469970), (68, 234985), (85, 187988), (170, 93994), (340, 46997)]