199953280

素因数分解:

$2^7\times 5^1\times {\mathrm{312427}}^1$

素因数の和:312446

約数の個数: 32

約数和(自身を含む): 478014840

約数和(自身を除く): 278061560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 312427, 624854, 1249708, 1562135, 2499416, 3124270, 4998832, 6248540, 9997664, 12497080, 19995328, 24994160, 39990656, 49988320, 99976640, 199953280]

約数ペア:

[(1, 199953280), (2, 99976640), (4, 49988320), (5, 39990656), (8, 24994160), (10, 19995328), (16, 12497080), (20, 9997664), (32, 6248540), (40, 4998832), (64, 3124270), (80, 2499416), (128, 1562135), (160, 1249708), (320, 624854), (640, 312427)]