28264780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74381}}^1$

素因数の和:74409

約数の個数: 24

約数和(自身を含む): 62480880

約数和(自身を除く): 34216100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74381, 148762, 297524, 371905, 743810, 1413239, 1487620, 2826478, 5652956, 7066195, 14132390, 28264780]

約数ペア:

[(1, 28264780), (2, 14132390), (4, 7066195), (5, 5652956), (10, 2826478), (19, 1487620), (20, 1413239), (38, 743810), (76, 371905), (95, 297524), (190, 148762), (380, 74381)]