28049260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19753}}^1$

素因数の和:19833

約数の個数: 24

約数和(自身を含む): 59736096

約数和(自身を除く): 31686836

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 19753, 39506, 79012, 98765, 197530, 395060, 1402463, 2804926, 5609852, 7012315, 14024630, 28049260]

約数ペア:

[(1, 28049260), (2, 14024630), (4, 7012315), (5, 5609852), (10, 2804926), (20, 1402463), (71, 395060), (142, 197530), (284, 98765), (355, 79012), (710, 39506), (1420, 19753)]