20199754880

素因数分解:

$2^7\times 5^1\times {\mathrm{31562117}}^1$

素因数の和:31562136

約数の個数: 32

約数和(自身を含む): 48290040540

約数和(自身を除く): 28090285660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31562117, 63124234, 126248468, 157810585, 252496936, 315621170, 504993872, 631242340, 1009987744, 1262484680, 2019975488, 2524969360, 4039950976, 5049938720, 10099877440, 20199754880]

約数ペア:

[(1, 20199754880), (2, 10099877440), (4, 5049938720), (5, 4039950976), (8, 2524969360), (10, 2019975488), (16, 1262484680), (20, 1009987744), (32, 631242340), (40, 504993872), (64, 315621170), (80, 252496936), (128, 157810585), (160, 126248468), (320, 63124234), (640, 31562117)]