13420225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 21748608

約数和(自身を除く): 8328383

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 175, 221, 325, 347, 425, 455, 595, 1105, 1547, 1735, 2275, 2429, 2975, 4511, 5525, 5899, 7735, 8675, 12145, 22555, 29495, 31577, 38675, 41293, 60725, 76687, 112775, 147475, 157885, 206465, 383435, 536809, 789425, 1032325, 1917175, 2684045, 13420225]

約数ペア:

[(1, 13420225), (5, 2684045), (7, 1917175), (13, 1032325), (17, 789425), (25, 536809), (35, 383435), (65, 206465), (85, 157885), (91, 147475), (119, 112775), (175, 76687), (221, 60725), (325, 41293), (347, 38675), (425, 31577), (455, 29495), (595, 22555), (1105, 12145), (1547, 8675), (1735, 7735), (2275, 5899), (2429, 5525), (2975, 4511)]