645793281

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{599}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 1084512000

約数和(自身を除く): 438718719

約数列:

[1, 3, 7, 9, 21, 63, 109, 157, 327, 471, 599, 763, 981, 1099, 1413, 1797, 2289, 3297, 4193, 5391, 6867, 9891, 12579, 17113, 37737, 51339, 65291, 94043, 119791, 154017, 195873, 282129, 359373, 457037, 587619, 658301, 846387, 1078119, 1371111, 1974903, 4113333, 5924709, 10250687, 30752061, 71754809, 92256183, 215264427, 645793281]

約数ペア:

[(1, 645793281), (3, 215264427), (7, 92256183), (9, 71754809), (21, 30752061), (63, 10250687), (109, 5924709), (157, 4113333), (327, 1974903), (471, 1371111), (599, 1078119), (763, 846387), (981, 658301), (1099, 587619), (1413, 457037), (1797, 359373), (2289, 282129), (3297, 195873), (4193, 154017), (5391, 119791), (6867, 94043), (9891, 65291), (12579, 51339), (17113, 37737)]