209968390

素因数分解:

$2^1\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{16139}}^1$

素因数の和:17447

約数の個数: 16

約数和(自身を含む): 378257040

約数和(自身を除く): 168288650

約数列:

[1, 2, 5, 10, 1301, 2602, 6505, 13010, 16139, 32278, 80695, 161390, 20996839, 41993678, 104984195, 209968390]

約数ペア:

[(1, 209968390), (2, 104984195), (5, 41993678), (10, 20996839), (1301, 161390), (2602, 80695), (6505, 32278), (13010, 16139)]