20340925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 30801600

約数和(自身を除く): 10460675

約数列:

[1, 5, 11, 17, 19, 25, 55, 85, 95, 187, 209, 229, 275, 323, 425, 475, 935, 1045, 1145, 1615, 2519, 3553, 3893, 4351, 4675, 5225, 5725, 8075, 12595, 17765, 19465, 21755, 42823, 47861, 62975, 73967, 88825, 97325, 108775, 214115, 239305, 369835, 813637, 1070575, 1196525, 1849175, 4068185, 20340925]

約数ペア:

[(1, 20340925), (5, 4068185), (11, 1849175), (17, 1196525), (19, 1070575), (25, 813637), (55, 369835), (85, 239305), (95, 214115), (187, 108775), (209, 97325), (229, 88825), (275, 73967), (323, 62975), (425, 47861), (475, 42823), (935, 21755), (1045, 19465), (1145, 17765), (1615, 12595), (2519, 8075), (3553, 5725), (3893, 5225), (4351, 4675)]