69128390

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{17239}}^1$

素因数の和:17647

約数の個数: 16

約数和(自身を含む): 124748640

約数和(自身を除く): 55620250

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 17239, 34478, 86195, 172390, 6912839, 13825678, 34564195, 69128390]

約数ペア:

[(1, 69128390), (2, 34564195), (5, 13825678), (10, 6912839), (401, 172390), (802, 86195), (2005, 34478), (4010, 17239)]