220335999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 343816704

約数和(自身を除く): 123480705

約数列:

[1, 3, 13, 37, 39, 43, 53, 67, 111, 129, 159, 201, 481, 559, 689, 871, 1443, 1591, 1677, 1961, 2067, 2279, 2479, 2613, 2881, 3551, 4773, 5883, 6837, 7437, 8643, 10653, 20683, 25493, 29627, 32227, 37453, 46163, 62049, 76479, 84323, 88881, 96681, 106597, 112359, 131387, 138489, 152693, 252969, 319791, 394161, 458079, 1096199, 1385761, 1708031, 1985009, 3288597, 4157283, 5124093, 5649641, 5955027, 16948923, 73445333, 220335999]

約数ペア:

[(1, 220335999), (3, 73445333), (13, 16948923), (37, 5955027), (39, 5649641), (43, 5124093), (53, 4157283), (67, 3288597), (111, 1985009), (129, 1708031), (159, 1385761), (201, 1096199), (481, 458079), (559, 394161), (689, 319791), (871, 252969), (1443, 152693), (1591, 138489), (1677, 131387), (1961, 112359), (2067, 106597), (2279, 96681), (2479, 88881), (2613, 84323), (2881, 76479), (3551, 62049), (4773, 46163), (5883, 37453), (6837, 32227), (7437, 29627), (8643, 25493), (10653, 20683)]