61427320

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7717}}^1$

素因数の和:7927

約数の個数: 32

約数和(自身を含む): 138924000

約数和(自身を除く): 77496680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7717, 7960, 15434, 30868, 38585, 61736, 77170, 154340, 308680, 1535683, 3071366, 6142732, 7678415, 12285464, 15356830, 30713660, 61427320]

約数ペア:

[(1, 61427320), (2, 30713660), (4, 15356830), (5, 12285464), (8, 7678415), (10, 6142732), (20, 3071366), (40, 1535683), (199, 308680), (398, 154340), (796, 77170), (995, 61736), (1592, 38585), (1990, 30868), (3980, 15434), (7717, 7960)]