8182880

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 19504800

約数和(自身を除く): 11321920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 257, 398, 514, 796, 995, 1028, 1285, 1592, 1990, 2056, 2570, 3184, 3980, 4112, 5140, 6368, 7960, 8224, 10280, 15920, 20560, 31840, 41120, 51143, 102286, 204572, 255715, 409144, 511430, 818288, 1022860, 1636576, 2045720, 4091440, 8182880]

約数ペア:

[(1, 8182880), (2, 4091440), (4, 2045720), (5, 1636576), (8, 1022860), (10, 818288), (16, 511430), (20, 409144), (32, 255715), (40, 204572), (80, 102286), (160, 51143), (199, 41120), (257, 31840), (398, 20560), (514, 15920), (796, 10280), (995, 8224), (1028, 7960), (1285, 6368), (1592, 5140), (1990, 4112), (2056, 3980), (2570, 3184)]