204433280

素因数分解:

$2^7\times 5^1\times {\mathrm{319427}}^1$

素因数の和:319446

約数の個数: 32

約数和(自身を含む): 488724840

約数和(自身を除く): 284291560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 319427, 638854, 1277708, 1597135, 2555416, 3194270, 5110832, 6388540, 10221664, 12777080, 20443328, 25554160, 40886656, 51108320, 102216640, 204433280]

約数ペア:

[(1, 204433280), (2, 102216640), (4, 51108320), (5, 40886656), (8, 25554160), (10, 20443328), (16, 12777080), (20, 10221664), (32, 6388540), (40, 5110832), (64, 3194270), (80, 2555416), (128, 1597135), (160, 1277708), (320, 638854), (640, 319427)]