978997985

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{17581}}^1$

素因数の和:17673

約数の個数: 32

約数和(自身を含む): 1411060992

約数和(自身を除く): 432063007

約数列:

[1, 5, 7, 35, 37, 43, 185, 215, 259, 301, 1295, 1505, 1591, 7955, 11137, 17581, 55685, 87905, 123067, 615335, 650497, 755983, 3252485, 3779915, 4553479, 5291881, 22767395, 26459405, 27971371, 139856855, 195799597, 978997985]

約数ペア:

[(1, 978997985), (5, 195799597), (7, 139856855), (35, 27971371), (37, 26459405), (43, 22767395), (185, 5291881), (215, 4553479), (259, 3779915), (301, 3252485), (1295, 755983), (1505, 650497), (1591, 615335), (7955, 123067), (11137, 87905), (17581, 55685)]