28199420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74209}}^1$

素因数の和:74237

約数の個数: 24

約数和(自身を含む): 62336400

約数和(自身を除く): 34136980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74209, 148418, 296836, 371045, 742090, 1409971, 1484180, 2819942, 5639884, 7049855, 14099710, 28199420]

約数ペア:

[(1, 28199420), (2, 14099710), (4, 7049855), (5, 5639884), (10, 2819942), (19, 1484180), (20, 1409971), (38, 742090), (76, 371045), (95, 296836), (190, 148418), (380, 74209)]