28357291280

素因数分解:

$2^4\times 5^1\times {\mathrm{13411}}^1\times {\mathrm{26431}}^1$

素因数の和:39855

約数の個数: 40

約数和(自身を含む): 65938113024

約数和(自身を除く): 37580821744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 13411, 26431, 26822, 52862, 53644, 67055, 105724, 107288, 132155, 134110, 211448, 214576, 264310, 268220, 422896, 528620, 536440, 1057240, 1072880, 2114480, 354466141, 708932282, 1417864564, 1772330705, 2835729128, 3544661410, 5671458256, 7089322820, 14178645640, 28357291280]

約数ペア:

[(1, 28357291280), (2, 14178645640), (4, 7089322820), (5, 5671458256), (8, 3544661410), (10, 2835729128), (16, 1772330705), (20, 1417864564), (40, 708932282), (80, 354466141), (13411, 2114480), (26431, 1072880), (26822, 1057240), (52862, 536440), (53644, 528620), (67055, 422896), (105724, 268220), (107288, 264310), (132155, 214576), (134110, 211448)]