30731990

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{16979}}^1$

素因数の和:17167

約数の個数: 16

約数和(自身を含む): 55626480

約数和(自身を除く): 24894490

約数列:

[1, 2, 5, 10, 181, 362, 905, 1810, 16979, 33958, 84895, 169790, 3073199, 6146398, 15365995, 30731990]

約数ペア:

[(1, 30731990), (2, 15365995), (5, 6146398), (10, 3073199), (181, 169790), (362, 84895), (905, 33958), (1810, 16979)]