12781275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{13109}}^1$

素因数の和:13135

約数の個数: 24

約数和(自身を含む): 22758960

約数和(自身を除く): 9977685

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 13109, 39327, 65545, 170417, 196635, 327725, 511251, 852085, 983175, 2556255, 4260425, 12781275]

約数ペア:

[(1, 12781275), (3, 4260425), (5, 2556255), (13, 983175), (15, 852085), (25, 511251), (39, 327725), (65, 196635), (75, 170417), (195, 65545), (325, 39327), (975, 13109)]