15281385

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1223}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 30139776

約数和(自身を除く): 14858391

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 1223, 1785, 2499, 3669, 4165, 6115, 8561, 12495, 18345, 20791, 25683, 42805, 59927, 62373, 103955, 128415, 145537, 179781, 299635, 311865, 436611, 727685, 898905, 1018759, 2183055, 3056277, 5093795, 15281385]

約数ペア:

[(1, 15281385), (3, 5093795), (5, 3056277), (7, 2183055), (15, 1018759), (17, 898905), (21, 727685), (35, 436611), (49, 311865), (51, 299635), (85, 179781), (105, 145537), (119, 128415), (147, 103955), (245, 62373), (255, 59927), (357, 42805), (595, 25683), (735, 20791), (833, 18345), (1223, 12495), (1785, 8561), (2499, 6115), (3669, 4165)]