64686465

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 121927680

約数和(自身を除く): 57241215

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 83, 115, 135, 207, 249, 251, 345, 415, 621, 747, 753, 1035, 1245, 1255, 1909, 2241, 2259, 3105, 3735, 3765, 5727, 5773, 6777, 9545, 11205, 11295, 17181, 17319, 20833, 28635, 28865, 33885, 51543, 51957, 62499, 85905, 86595, 104165, 155871, 187497, 257715, 259785, 312495, 479159, 562491, 779355, 937485, 1437477, 2395795, 2812455, 4312431, 7187385, 12937293, 21562155, 64686465]

約数ペア:

[(1, 64686465), (3, 21562155), (5, 12937293), (9, 7187385), (15, 4312431), (23, 2812455), (27, 2395795), (45, 1437477), (69, 937485), (83, 779355), (115, 562491), (135, 479159), (207, 312495), (249, 259785), (251, 257715), (345, 187497), (415, 155871), (621, 104165), (747, 86595), (753, 85905), (1035, 62499), (1245, 51957), (1255, 51543), (1909, 33885), (2241, 28865), (2259, 28635), (3105, 20833), (3735, 17319), (3765, 17181), (5727, 11295), (5773, 11205), (6777, 9545)]