18720113216

素因数分解:

$2^6\times 7^1\times {\mathrm{103}}^1\times {\mathrm{405689}}^1$

素因数の和:405811

約数の個数: 56

約数和(自身を含む): 42866828160

約数和(自身を除く): 24146714944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 103, 112, 206, 224, 412, 448, 721, 824, 1442, 1648, 2884, 3296, 5768, 6592, 11536, 23072, 46144, 405689, 811378, 1622756, 2839823, 3245512, 5679646, 6491024, 11359292, 12982048, 22718584, 25964096, 41785967, 45437168, 83571934, 90874336, 167143868, 181748672, 292501769, 334287736, 585003538, 668575472, 1170007076, 1337150944, 2340014152, 2674301888, 4680028304, 9360056608, 18720113216]

約数ペア:

[(1, 18720113216), (2, 9360056608), (4, 4680028304), (7, 2674301888), (8, 2340014152), (14, 1337150944), (16, 1170007076), (28, 668575472), (32, 585003538), (56, 334287736), (64, 292501769), (103, 181748672), (112, 167143868), (206, 90874336), (224, 83571934), (412, 45437168), (448, 41785967), (721, 25964096), (824, 22718584), (1442, 12982048), (1648, 11359292), (2884, 6491024), (3296, 5679646), (5768, 3245512), (6592, 2839823), (11536, 1622756), (23072, 811378), (46144, 405689)]