209035520

素因数分解:

$2^8\times 5^1\times {\mathrm{163309}}^1$

素因数の和:163330

約数の個数: 36

約数和(自身を含む): 500708460

約数和(自身を除く): 291672940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 163309, 326618, 653236, 816545, 1306472, 1633090, 2612944, 3266180, 5225888, 6532360, 10451776, 13064720, 20903552, 26129440, 41807104, 52258880, 104517760, 209035520]

約数ペア:

[(1, 209035520), (2, 104517760), (4, 52258880), (5, 41807104), (8, 26129440), (10, 20903552), (16, 13064720), (20, 10451776), (32, 6532360), (40, 5225888), (64, 3266180), (80, 2612944), (128, 1633090), (160, 1306472), (256, 816545), (320, 653236), (640, 326618), (1280, 163309)]