20618221845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{2753}}^1$

素因数の和:3166

約数の個数: 64

約数和(自身を含む): 35903347200

約数和(自身を除く): 15285125355

約数列:

[1, 3, 5, 13, 15, 39, 65, 193, 195, 199, 579, 597, 965, 995, 2509, 2587, 2753, 2895, 2985, 7527, 7761, 8259, 12545, 12935, 13765, 35789, 37635, 38407, 38805, 41295, 107367, 115221, 178945, 192035, 499291, 531329, 536835, 547847, 576105, 1497873, 1593987, 1643541, 2496455, 2656645, 2739235, 6907277, 7122011, 7489365, 7969935, 8217705, 20721831, 21366033, 34536385, 35610055, 103609155, 105734471, 106830165, 317203413, 528672355, 1374548123, 1586017065, 4123644369, 6872740615, 20618221845]

約数ペア:

[(1, 20618221845), (3, 6872740615), (5, 4123644369), (13, 1586017065), (15, 1374548123), (39, 528672355), (65, 317203413), (193, 106830165), (195, 105734471), (199, 103609155), (579, 35610055), (597, 34536385), (965, 21366033), (995, 20721831), (2509, 8217705), (2587, 7969935), (2753, 7489365), (2895, 7122011), (2985, 6907277), (7527, 2739235), (7761, 2656645), (8259, 2496455), (12545, 1643541), (12935, 1593987), (13765, 1497873), (35789, 576105), (37635, 547847), (38407, 536835), (38805, 531329), (41295, 499291), (107367, 192035), (115221, 178945)]