30931505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^2$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 41529024

約数和(自身を除く): 10597519

約数列:

[1, 5, 11, 55, 71, 89, 355, 445, 781, 979, 3905, 4895, 6319, 7921, 31595, 39605, 69509, 87131, 347545, 435655, 562391, 2811955, 6186301, 30931505]

約数ペア:

[(1, 30931505), (5, 6186301), (11, 2811955), (55, 562391), (71, 435655), (89, 347545), (355, 87131), (445, 69509), (781, 39605), (979, 31595), (3905, 7921), (4895, 6319)]