8139685

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 10698336

約数和(自身を除く): 2558651

約数列:

[1, 5, 17, 43, 85, 131, 215, 289, 655, 731, 1445, 2227, 3655, 5633, 11135, 12427, 28165, 37859, 62135, 95761, 189295, 478805, 1627937, 8139685]

約数ペア:

[(1, 8139685), (5, 1627937), (17, 478805), (43, 189295), (85, 95761), (131, 62135), (215, 37859), (289, 28165), (655, 12427), (731, 11135), (1445, 5633), (2227, 3655)]