209726240

素因数分解:

$2^5\times 5^1\times {\mathrm{1310789}}^1$

素因数の和:1310804

約数の個数: 24

約数和(自身を含む): 495478620

約数和(自身を除く): 285752380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1310789, 2621578, 5243156, 6553945, 10486312, 13107890, 20972624, 26215780, 41945248, 52431560, 104863120, 209726240]

約数ペア:

[(1, 209726240), (2, 104863120), (4, 52431560), (5, 41945248), (8, 26215780), (10, 20972624), (16, 13107890), (20, 10486312), (32, 6553945), (40, 5243156), (80, 2621578), (160, 1310789)]