20048525

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 31497984

約数和(自身を除く): 11449459

約数列:

[1, 5, 7, 17, 23, 25, 35, 85, 115, 119, 161, 175, 293, 391, 425, 575, 595, 805, 1465, 1955, 2051, 2737, 2975, 4025, 4981, 6739, 7325, 9775, 10255, 13685, 24905, 33695, 34867, 47173, 51275, 68425, 114563, 124525, 168475, 174335, 235865, 572815, 801941, 871675, 1179325, 2864075, 4009705, 20048525]

約数ペア:

[(1, 20048525), (5, 4009705), (7, 2864075), (17, 1179325), (23, 871675), (25, 801941), (35, 572815), (85, 235865), (115, 174335), (119, 168475), (161, 124525), (175, 114563), (293, 68425), (391, 51275), (425, 47173), (575, 34867), (595, 33695), (805, 24905), (1465, 13685), (1955, 10255), (2051, 9775), (2737, 7325), (2975, 6739), (4025, 4981)]