1989255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 3499200

約数和(自身を除く): 1509945

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 269, 435, 493, 807, 1345, 1479, 2465, 4035, 4573, 7395, 7801, 13719, 22865, 23403, 39005, 68595, 117015, 132617, 397851, 663085, 1989255]

約数ペア:

[(1, 1989255), (3, 663085), (5, 397851), (15, 132617), (17, 117015), (29, 68595), (51, 39005), (85, 23403), (87, 22865), (145, 13719), (255, 7801), (269, 7395), (435, 4573), (493, 4035), (807, 2465), (1345, 1479)]