1290406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1647

約数の個数: 16

約数和(自身を含む): 2153088

約数和(自身を除く): 862682

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 1601, 3202, 20813, 41626, 49631, 99262, 645203, 1290406]

約数ペア:

[(1, 1290406), (2, 645203), (13, 99262), (26, 49631), (31, 41626), (62, 20813), (403, 3202), (806, 1601)]