51228160

素因数分解:

$2^9\times 5^1\times {\mathrm{20011}}^1$

素因数の和:20034

約数の個数: 40

約数和(自身を含む): 122833656

約数和(自身を除く): 71605496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 20011, 40022, 80044, 100055, 160088, 200110, 320176, 400220, 640352, 800440, 1280704, 1600880, 2561408, 3201760, 5122816, 6403520, 10245632, 12807040, 25614080, 51228160]

約数ペア:

[(1, 51228160), (2, 25614080), (4, 12807040), (5, 10245632), (8, 6403520), (10, 5122816), (16, 3201760), (20, 2561408), (32, 1600880), (40, 1280704), (64, 800440), (80, 640352), (128, 400220), (160, 320176), (256, 200110), (320, 160088), (512, 100055), (640, 80044), (1280, 40022), (2560, 20011)]