71117440

素因数分解:

$2^7\times 5^1\times {\mathrm{111121}}^1$

素因数の和:111140

約数の個数: 32

約数和(自身を含む): 170016660

約数和(自身を除く): 98899220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 111121, 222242, 444484, 555605, 888968, 1111210, 1777936, 2222420, 3555872, 4444840, 7111744, 8889680, 14223488, 17779360, 35558720, 71117440]

約数ペア:

[(1, 71117440), (2, 35558720), (4, 17779360), (5, 14223488), (8, 8889680), (10, 7111744), (16, 4444840), (20, 3555872), (32, 2222420), (40, 1777936), (64, 1111210), (80, 888968), (128, 555605), (160, 444484), (320, 222242), (640, 111121)]