8720237440

素因数分解:

$2^7\times 5^1\times {\mathrm{13625371}}^1$

素因数の和:13625390

約数の個数: 32

約数和(自身を含む): 20846819160

約数和(自身を除く): 12126581720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13625371, 27250742, 54501484, 68126855, 109002968, 136253710, 218005936, 272507420, 436011872, 545014840, 872023744, 1090029680, 1744047488, 2180059360, 4360118720, 8720237440]

約数ペア:

[(1, 8720237440), (2, 4360118720), (4, 2180059360), (5, 1744047488), (8, 1090029680), (10, 872023744), (16, 545014840), (20, 436011872), (32, 272507420), (40, 218005936), (64, 136253710), (80, 109002968), (128, 68126855), (160, 54501484), (320, 27250742), (640, 13625371)]