12730025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 20891520

約数和(自身を除く): 8161495

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 385, 389, 425, 595, 935, 1309, 1925, 1945, 2723, 2975, 4279, 4675, 6545, 6613, 9725, 13615, 21395, 29953, 32725, 33065, 46291, 68075, 72743, 106975, 149765, 165325, 231455, 363715, 509201, 748825, 1157275, 1818575, 2546005, 12730025]

約数ペア:

[(1, 12730025), (5, 2546005), (7, 1818575), (11, 1157275), (17, 748825), (25, 509201), (35, 363715), (55, 231455), (77, 165325), (85, 149765), (119, 106975), (175, 72743), (187, 68075), (275, 46291), (385, 33065), (389, 32725), (425, 29953), (595, 21395), (935, 13615), (1309, 9725), (1925, 6613), (1945, 6545), (2723, 4675), (2975, 4279)]