20305465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{487}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 4992455

約数列:

[1, 5, 31, 155, 269, 487, 1345, 2435, 8339, 15097, 41695, 75485, 131003, 655015, 4061093, 20305465]

約数ペア:

[(1, 20305465), (5, 4061093), (31, 655015), (155, 131003), (269, 75485), (487, 41695), (1345, 15097), (2435, 8339)]