12993040

素因数分解:

$2^4\times 5^1\times {\mathrm{162413}}^1$

素因数の和:162426

約数の個数: 20

約数和(自身を含む): 30209004

約数和(自身を除く): 17215964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 162413, 324826, 649652, 812065, 1299304, 1624130, 2598608, 3248260, 6496520, 12993040]

約数ペア:

[(1, 12993040), (2, 6496520), (4, 3248260), (5, 2598608), (8, 1624130), (10, 1299304), (16, 812065), (20, 649652), (40, 324826), (80, 162413)]