18013120

素因数分解:

$2^6\times 5^1\times {\mathrm{181}}^1\times {\mathrm{311}}^1$

素因数の和:509

約数の個数: 56

約数和(自身を含む): 43269408

約数和(自身を除く): 25256288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 181, 311, 320, 362, 622, 724, 905, 1244, 1448, 1555, 1810, 2488, 2896, 3110, 3620, 4976, 5792, 6220, 7240, 9952, 11584, 12440, 14480, 19904, 24880, 28960, 49760, 56291, 57920, 99520, 112582, 225164, 281455, 450328, 562910, 900656, 1125820, 1801312, 2251640, 3602624, 4503280, 9006560, 18013120]

約数ペア:

[(1, 18013120), (2, 9006560), (4, 4503280), (5, 3602624), (8, 2251640), (10, 1801312), (16, 1125820), (20, 900656), (32, 562910), (40, 450328), (64, 281455), (80, 225164), (160, 112582), (181, 99520), (311, 57920), (320, 56291), (362, 49760), (622, 28960), (724, 24880), (905, 19904), (1244, 14480), (1448, 12440), (1555, 11584), (1810, 9952), (2488, 7240), (2896, 6220), (3110, 5792), (3620, 4976)]