40989800

素因数分解:

$2^3\times 5^2\times {\mathrm{311}}^1\times {\mathrm{659}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 95752800

約数和(自身を除く): 54763000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 311, 622, 659, 1244, 1318, 1555, 2488, 2636, 3110, 3295, 5272, 6220, 6590, 7775, 12440, 13180, 15550, 16475, 26360, 31100, 32950, 62200, 65900, 131800, 204949, 409898, 819796, 1024745, 1639592, 2049490, 4098980, 5123725, 8197960, 10247450, 20494900, 40989800]

約数ペア:

[(1, 40989800), (2, 20494900), (4, 10247450), (5, 8197960), (8, 5123725), (10, 4098980), (20, 2049490), (25, 1639592), (40, 1024745), (50, 819796), (100, 409898), (200, 204949), (311, 131800), (622, 65900), (659, 62200), (1244, 32950), (1318, 31100), (1555, 26360), (2488, 16475), (2636, 15550), (3110, 13180), (3295, 12440), (5272, 7775), (6220, 6590)]