72486400

素因数分解:

$2^9\times 5^2\times 7^1\times {\mathrm{809}}^1$

素因数の和:844

約数の個数: 120

約数和(自身を含む): 205500240

約数和(自身を除く): 133013840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 256, 280, 320, 350, 400, 448, 512, 560, 640, 700, 800, 809, 896, 1120, 1280, 1400, 1600, 1618, 1792, 2240, 2560, 2800, 3200, 3236, 3584, 4045, 4480, 5600, 5663, 6400, 6472, 8090, 8960, 11200, 11326, 12800, 12944, 16180, 17920, 20225, 22400, 22652, 25888, 28315, 32360, 40450, 44800, 45304, 51776, 56630, 64720, 80900, 89600, 90608, 103552, 113260, 129440, 141575, 161800, 181216, 207104, 226520, 258880, 283150, 323600, 362432, 414208, 453040, 517760, 566300, 647200, 724864, 906080, 1035520, 1132600, 1294400, 1449728, 1812160, 2071040, 2265200, 2588800, 2899456, 3624320, 4530400, 5177600, 7248640, 9060800, 10355200, 14497280, 18121600, 36243200, 72486400]

約数ペア:

[(1, 72486400), (2, 36243200), (4, 18121600), (5, 14497280), (7, 10355200), (8, 9060800), (10, 7248640), (14, 5177600), (16, 4530400), (20, 3624320), (25, 2899456), (28, 2588800), (32, 2265200), (35, 2071040), (40, 1812160), (50, 1449728), (56, 1294400), (64, 1132600), (70, 1035520), (80, 906080), (100, 724864), (112, 647200), (128, 566300), (140, 517760), (160, 453040), (175, 414208), (200, 362432), (224, 323600), (256, 283150), (280, 258880), (320, 226520), (350, 207104), (400, 181216), (448, 161800), (512, 141575), (560, 129440), (640, 113260), (700, 103552), (800, 90608), (809, 89600), (896, 80900), (1120, 64720), (1280, 56630), (1400, 51776), (1600, 45304), (1618, 44800), (1792, 40450), (2240, 32360), (2560, 28315), (2800, 25888), (3200, 22652), (3236, 22400), (3584, 20225), (4045, 17920), (4480, 16180), (5600, 12944), (5663, 12800), (6400, 11326), (6472, 11200), (8090, 8960)]