8157720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 24685920

約数和(自身を除く): 16528200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 433, 471, 628, 785, 866, 942, 1256, 1299, 1570, 1732, 1884, 2165, 2355, 2598, 3140, 3464, 3768, 4330, 4710, 5196, 6280, 6495, 8660, 9420, 10392, 12990, 17320, 18840, 25980, 51960, 67981, 135962, 203943, 271924, 339905, 407886, 543848, 679810, 815772, 1019715, 1359620, 1631544, 2039430, 2719240, 4078860, 8157720]

約数ペア:

[(1, 8157720), (2, 4078860), (3, 2719240), (4, 2039430), (5, 1631544), (6, 1359620), (8, 1019715), (10, 815772), (12, 679810), (15, 543848), (20, 407886), (24, 339905), (30, 271924), (40, 203943), (60, 135962), (120, 67981), (157, 51960), (314, 25980), (433, 18840), (471, 17320), (628, 12990), (785, 10392), (866, 9420), (942, 8660), (1256, 6495), (1299, 6280), (1570, 5196), (1732, 4710), (1884, 4330), (2165, 3768), (2355, 3464), (2598, 3140)]