81863710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{115301}}^1$

素因数の和:115379

約数の個数: 16

約数和(自身を含む): 149431392

約数和(自身を除く): 67567682

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 115301, 230602, 576505, 1153010, 8186371, 16372742, 40931855, 81863710]

約数ペア:

[(1, 81863710), (2, 40931855), (5, 16372742), (10, 8186371), (71, 1153010), (142, 576505), (355, 230602), (710, 115301)]