20620376

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 46108440

約数和(自身を除く): 25488064

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 328, 392, 574, 1148, 1283, 2009, 2296, 2566, 4018, 5132, 8036, 8981, 10264, 16072, 17962, 35924, 52603, 62867, 71848, 105206, 125734, 210412, 251468, 368221, 420824, 502936, 736442, 1472884, 2577547, 2945768, 5155094, 10310188, 20620376]

約数ペア:

[(1, 20620376), (2, 10310188), (4, 5155094), (7, 2945768), (8, 2577547), (14, 1472884), (28, 736442), (41, 502936), (49, 420824), (56, 368221), (82, 251468), (98, 210412), (164, 125734), (196, 105206), (287, 71848), (328, 62867), (392, 52603), (574, 35924), (1148, 17962), (1283, 16072), (2009, 10264), (2296, 8981), (2566, 8036), (4018, 5132)]