1640802247

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^3\times {\mathrm{179}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 2034547200

約数和(自身を除く): 393744953

約数列:

[1, 7, 19, 41, 133, 179, 287, 779, 1253, 1681, 3401, 5453, 7339, 11767, 23807, 31939, 51373, 68921, 139441, 223573, 300899, 482447, 976087, 1309499, 2106293, 5717081, 9166493, 12336859, 40019567, 86358013, 234400321, 1640802247]

約数ペア:

[(1, 1640802247), (7, 234400321), (19, 86358013), (41, 40019567), (133, 12336859), (179, 9166493), (287, 5717081), (779, 2106293), (1253, 1309499), (1681, 976087), (3401, 482447), (5453, 300899), (7339, 223573), (11767, 139441), (23807, 68921), (31939, 51373)]