663840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{461}}^1$

素因数の和:482

約数の個数: 72

約数和(自身を含む): 2270268

約数和(自身を除く): 1606428

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 461, 480, 720, 922, 1383, 1440, 1844, 2305, 2766, 3688, 4149, 4610, 5532, 6915, 7376, 8298, 9220, 11064, 13830, 14752, 16596, 18440, 20745, 22128, 27660, 33192, 36880, 41490, 44256, 55320, 66384, 73760, 82980, 110640, 132768, 165960, 221280, 331920, 663840]

約数ペア:

[(1, 663840), (2, 331920), (3, 221280), (4, 165960), (5, 132768), (6, 110640), (8, 82980), (9, 73760), (10, 66384), (12, 55320), (15, 44256), (16, 41490), (18, 36880), (20, 33192), (24, 27660), (30, 22128), (32, 20745), (36, 18440), (40, 16596), (45, 14752), (48, 13830), (60, 11064), (72, 9220), (80, 8298), (90, 7376), (96, 6915), (120, 5532), (144, 4610), (160, 4149), (180, 3688), (240, 2766), (288, 2305), (360, 1844), (461, 1440), (480, 1383), (720, 922)]