209089280

素因数分解:

$2^8\times 5^1\times {\mathrm{163351}}^1$

素因数の和:163372

約数の個数: 36

約数和(自身を含む): 500837232

約数和(自身を除く): 291747952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 163351, 326702, 653404, 816755, 1306808, 1633510, 2613616, 3267020, 5227232, 6534040, 10454464, 13068080, 20908928, 26136160, 41817856, 52272320, 104544640, 209089280]

約数ペア:

[(1, 209089280), (2, 104544640), (4, 52272320), (5, 41817856), (8, 26136160), (10, 20908928), (16, 13068080), (20, 10454464), (32, 6534040), (40, 5227232), (64, 3267020), (80, 2613616), (128, 1633510), (160, 1306808), (256, 816755), (320, 653404), (640, 326702), (1280, 163351)]