280121120

素因数分解:

$2^5\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1559}}^1$

素因数の和:2697

約数の個数: 48

約数和(自身を含む): 662800320

約数和(自身を除く): 382679200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1123, 1559, 2246, 3118, 4492, 5615, 6236, 7795, 8984, 11230, 12472, 15590, 17968, 22460, 24944, 31180, 35936, 44920, 49888, 62360, 89840, 124720, 179680, 249440, 1750757, 3501514, 7003028, 8753785, 14006056, 17507570, 28012112, 35015140, 56024224, 70030280, 140060560, 280121120]

約数ペア:

[(1, 280121120), (2, 140060560), (4, 70030280), (5, 56024224), (8, 35015140), (10, 28012112), (16, 17507570), (20, 14006056), (32, 8753785), (40, 7003028), (80, 3501514), (160, 1750757), (1123, 249440), (1559, 179680), (2246, 124720), (3118, 89840), (4492, 62360), (5615, 49888), (6236, 44920), (7795, 35936), (8984, 31180), (11230, 24944), (12472, 22460), (15590, 17968)]