51341440

素因数分解:

$2^7\times 5^1\times {\mathrm{80221}}^1$

素因数の和:80240

約数の個数: 32

約数和(自身を含む): 122739660

約数和(自身を除く): 71398220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 80221, 160442, 320884, 401105, 641768, 802210, 1283536, 1604420, 2567072, 3208840, 5134144, 6417680, 10268288, 12835360, 25670720, 51341440]

約数ペア:

[(1, 51341440), (2, 25670720), (4, 12835360), (5, 10268288), (8, 6417680), (10, 5134144), (16, 3208840), (20, 2567072), (32, 1604420), (40, 1283536), (64, 802210), (80, 641768), (128, 401105), (160, 320884), (320, 160442), (640, 80221)]