219105280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{21397}}^1$

素因数の和:21424

約数の個数: 48

約数和(自身を含む): 525748860

約数和(自身を除く): 306643580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 21397, 42794, 85588, 106985, 171176, 213970, 342352, 427940, 684704, 855880, 1369408, 1711760, 2738816, 3423520, 5477632, 6847040, 10955264, 13694080, 21910528, 27388160, 43821056, 54776320, 109552640, 219105280]

約数ペア:

[(1, 219105280), (2, 109552640), (4, 54776320), (5, 43821056), (8, 27388160), (10, 21910528), (16, 13694080), (20, 10955264), (32, 6847040), (40, 5477632), (64, 3423520), (80, 2738816), (128, 1711760), (160, 1369408), (256, 855880), (320, 684704), (512, 427940), (640, 342352), (1024, 213970), (1280, 171176), (2048, 106985), (2560, 85588), (5120, 42794), (10240, 21397)]