28651840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{12791}}^1$

素因数の和:12815

約数の個数: 56

約数和(自身を含む): 77980032

約数和(自身を除く): 49328192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 12791, 25582, 51164, 63955, 89537, 102328, 127910, 179074, 204656, 255820, 358148, 409312, 447685, 511640, 716296, 818624, 895370, 1023280, 1432592, 1790740, 2046560, 2865184, 3581480, 4093120, 5730368, 7162960, 14325920, 28651840]

約数ペア:

[(1, 28651840), (2, 14325920), (4, 7162960), (5, 5730368), (7, 4093120), (8, 3581480), (10, 2865184), (14, 2046560), (16, 1790740), (20, 1432592), (28, 1023280), (32, 895370), (35, 818624), (40, 716296), (56, 511640), (64, 447685), (70, 409312), (80, 358148), (112, 255820), (140, 204656), (160, 179074), (224, 127910), (280, 102328), (320, 89537), (448, 63955), (560, 51164), (1120, 25582), (2240, 12791)]