207649780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25763}}^1$

素因数の和:25816

約数の個数: 48

約数和(自身を含む): 484775424

約数和(自身を除く): 277125644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 25763, 51526, 103052, 128815, 257630, 334919, 515260, 669838, 798653, 1339676, 1597306, 1674595, 3194612, 3349190, 3993265, 6698380, 7986530, 10382489, 15973060, 20764978, 41529956, 51912445, 103824890, 207649780]

約数ペア:

[(1, 207649780), (2, 103824890), (4, 51912445), (5, 41529956), (10, 20764978), (13, 15973060), (20, 10382489), (26, 7986530), (31, 6698380), (52, 3993265), (62, 3349190), (65, 3194612), (124, 1674595), (130, 1597306), (155, 1339676), (260, 798653), (310, 669838), (403, 515260), (620, 334919), (806, 257630), (1612, 128815), (2015, 103052), (4030, 51526), (8060, 25763)]