1296460280

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{135613}}^1$

素因数の和:135863

約数の個数: 32

約数和(自身を含む): 2929262400

約数和(自身を除く): 1632802120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 135613, 271226, 542452, 678065, 1084904, 1356130, 2712260, 5424520, 32411507, 64823014, 129646028, 162057535, 259292056, 324115070, 648230140, 1296460280]

約数ペア:

[(1, 1296460280), (2, 648230140), (4, 324115070), (5, 259292056), (8, 162057535), (10, 129646028), (20, 64823014), (40, 32411507), (239, 5424520), (478, 2712260), (956, 1356130), (1195, 1084904), (1912, 678065), (2390, 542452), (4780, 271226), (9560, 135613)]