12989105

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 16909560

約数和(自身を除く): 3920455

約数列:

[1, 5, 17, 85, 89, 101, 289, 445, 505, 1445, 1513, 1717, 7565, 8585, 8989, 25721, 29189, 44945, 128605, 145945, 152813, 764065, 2597821, 12989105]

約数ペア:

[(1, 12989105), (5, 2597821), (17, 764065), (85, 152813), (89, 145945), (101, 128605), (289, 44945), (445, 29189), (505, 25721), (1445, 8989), (1513, 8585), (1717, 7565)]