28436905

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3137}}^1$

素因数の和:3193

約数の個数: 24

約数和(自身を含む): 40781448

約数和(自身を除く): 12344543

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 3137, 9065, 15685, 21959, 109795, 116069, 153713, 580345, 768565, 812483, 4062415, 5687381, 28436905]

約数ペア:

[(1, 28436905), (5, 5687381), (7, 4062415), (35, 812483), (37, 768565), (49, 580345), (185, 153713), (245, 116069), (259, 109795), (1295, 21959), (1813, 15685), (3137, 9065)]