28807005

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1409}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 48729600

約数和(自身を除く): 19922595

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1363, 1409, 4089, 4227, 6815, 7045, 20445, 21135, 40861, 66223, 122583, 198669, 204305, 331115, 612915, 993345, 1920467, 5761401, 9602335, 28807005]

約数ペア:

[(1, 28807005), (3, 9602335), (5, 5761401), (15, 1920467), (29, 993345), (47, 612915), (87, 331115), (141, 204305), (145, 198669), (235, 122583), (435, 66223), (705, 40861), (1363, 21135), (1409, 20445), (4089, 7045), (4227, 6815)]