129012920

素因数分解:

$2^3\times 5^1\times {\mathrm{3225323}}^1$

素因数の和:3225334

約数の個数: 16

約数和(自身を含む): 290279160

約数和(自身を除く): 161266240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3225323, 6450646, 12901292, 16126615, 25802584, 32253230, 64506460, 129012920]

約数ペア:

[(1, 129012920), (2, 64506460), (4, 32253230), (5, 25802584), (8, 16126615), (10, 12901292), (20, 6450646), (40, 3225323)]