1997440

素因数分解:

$2^7\times 5^1\times {\mathrm{3121}}^1$

素因数の和:3140

約数の個数: 32

約数和(自身を含む): 4776660

約数和(自身を除く): 2779220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3121, 6242, 12484, 15605, 24968, 31210, 49936, 62420, 99872, 124840, 199744, 249680, 399488, 499360, 998720, 1997440]

約数ペア:

[(1, 1997440), (2, 998720), (4, 499360), (5, 399488), (8, 249680), (10, 199744), (16, 124840), (20, 99872), (32, 62420), (40, 49936), (64, 31210), (80, 24968), (128, 15605), (160, 12484), (320, 6242), (640, 3121)]