157427840

素因数分解:

$2^7\times 5^1\times {\mathrm{245981}}^1$

素因数の和:246000

約数の個数: 32

約数和(自身を含む): 376352460

約数和(自身を除く): 218924620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245981, 491962, 983924, 1229905, 1967848, 2459810, 3935696, 4919620, 7871392, 9839240, 15742784, 19678480, 31485568, 39356960, 78713920, 157427840]

約数ペア:

[(1, 157427840), (2, 78713920), (4, 39356960), (5, 31485568), (8, 19678480), (10, 15742784), (16, 9839240), (20, 7871392), (32, 4919620), (40, 3935696), (64, 2459810), (80, 1967848), (128, 1229905), (160, 983924), (320, 491962), (640, 245981)]