28357425

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1039

約数の個数: 48

約数和(自身を含む): 53359680

約数和(自身を除く): 25002255

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 675, 977, 1075, 1161, 1935, 2931, 3225, 4885, 5805, 8793, 9675, 14655, 24425, 26379, 29025, 42011, 43965, 73275, 126033, 131895, 210055, 219825, 378099, 630165, 659475, 1050275, 1134297, 1890495, 3150825, 5671485, 9452475, 28357425]

約数ペア:

[(1, 28357425), (3, 9452475), (5, 5671485), (9, 3150825), (15, 1890495), (25, 1134297), (27, 1050275), (43, 659475), (45, 630165), (75, 378099), (129, 219825), (135, 210055), (215, 131895), (225, 126033), (387, 73275), (645, 43965), (675, 42011), (977, 29025), (1075, 26379), (1161, 24425), (1935, 14655), (2931, 9675), (3225, 8793), (4885, 5805)]