28649420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84263}}^1$

素因数の和:84289

約数の個数: 24

約数和(自身を含む): 63703584

約数和(自身を除く): 35054164

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 84263, 168526, 337052, 421315, 842630, 1432471, 1685260, 2864942, 5729884, 7162355, 14324710, 28649420]

約数ペア:

[(1, 28649420), (2, 14324710), (4, 7162355), (5, 5729884), (10, 2864942), (17, 1685260), (20, 1432471), (34, 842630), (68, 421315), (85, 337052), (170, 168526), (340, 84263)]