201021425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 290457600

約数和(自身を除く): 89436175

約数列:

[1, 5, 11, 19, 25, 55, 79, 95, 209, 275, 395, 475, 487, 869, 1045, 1501, 1975, 2435, 4345, 5225, 5357, 7505, 9253, 12175, 16511, 21725, 26785, 37525, 38473, 46265, 82555, 101783, 133925, 192365, 231325, 412775, 423203, 508915, 730987, 961825, 2116015, 2544575, 3654935, 8040857, 10580075, 18274675, 40204285, 201021425]

約数ペア:

[(1, 201021425), (5, 40204285), (11, 18274675), (19, 10580075), (25, 8040857), (55, 3654935), (79, 2544575), (95, 2116015), (209, 961825), (275, 730987), (395, 508915), (475, 423203), (487, 412775), (869, 231325), (1045, 192365), (1501, 133925), (1975, 101783), (2435, 82555), (4345, 46265), (5225, 38473), (5357, 37525), (7505, 26785), (9253, 21725), (12175, 16511)]