28534540

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2803}}^1$

素因数の和:3321

約数の個数: 24

約数和(自身を含む): 60061680

約数和(自身を除く): 31527140

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 2803, 5090, 5606, 10180, 11212, 14015, 28030, 56060, 1426727, 2853454, 5706908, 7133635, 14267270, 28534540]

約数ペア:

[(1, 28534540), (2, 14267270), (4, 7133635), (5, 5706908), (10, 2853454), (20, 1426727), (509, 56060), (1018, 28030), (2036, 14015), (2545, 11212), (2803, 10180), (5090, 5606)]