20666135

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{739}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 10023145

約数列:

[1, 5, 7, 17, 35, 47, 85, 119, 235, 329, 595, 739, 799, 1645, 3695, 3995, 5173, 5593, 12563, 25865, 27965, 34733, 62815, 87941, 173665, 243131, 439705, 590461, 1215655, 2952305, 4133227, 20666135]

約数ペア:

[(1, 20666135), (5, 4133227), (7, 2952305), (17, 1215655), (35, 590461), (47, 439705), (85, 243131), (119, 173665), (235, 87941), (329, 62815), (595, 34733), (739, 27965), (799, 25865), (1645, 12563), (3695, 5593), (3995, 5173)]