19953280

素因数分解:

$2^7\times 5^1\times {\mathrm{31177}}^1$

素因数の和:31196

約数の個数: 32

約数和(自身を含む): 47702340

約数和(自身を除く): 27749060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31177, 62354, 124708, 155885, 249416, 311770, 498832, 623540, 997664, 1247080, 1995328, 2494160, 3990656, 4988320, 9976640, 19953280]

約数ペア:

[(1, 19953280), (2, 9976640), (4, 4988320), (5, 3990656), (8, 2494160), (10, 1995328), (16, 1247080), (20, 997664), (32, 623540), (40, 498832), (64, 311770), (80, 249416), (128, 155885), (160, 124708), (320, 62354), (640, 31177)]