18618980

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1549}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 39190200

約数和(自身を除く): 20571220

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 1549, 2404, 3005, 3098, 6010, 6196, 7745, 12020, 15490, 30980, 930949, 1861898, 3723796, 4654745, 9309490, 18618980]

約数ペア:

[(1, 18618980), (2, 9309490), (4, 4654745), (5, 3723796), (10, 1861898), (20, 930949), (601, 30980), (1202, 15490), (1549, 12020), (2404, 7745), (3005, 6196), (3098, 6010)]