128356000

素因数分解:

$2^5\times 5^3\times {\mathrm{32089}}^1$

素因数の和:32114

約数の個数: 48

約数和(自身を含む): 315380520

約数和(自身を除く): 187024520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 32089, 64178, 128356, 160445, 256712, 320890, 513424, 641780, 802225, 1026848, 1283560, 1604450, 2567120, 3208900, 4011125, 5134240, 6417800, 8022250, 12835600, 16044500, 25671200, 32089000, 64178000, 128356000]

約数ペア:

[(1, 128356000), (2, 64178000), (4, 32089000), (5, 25671200), (8, 16044500), (10, 12835600), (16, 8022250), (20, 6417800), (25, 5134240), (32, 4011125), (40, 3208900), (50, 2567120), (80, 1604450), (100, 1283560), (125, 1026848), (160, 802225), (200, 641780), (250, 513424), (400, 320890), (500, 256712), (800, 160445), (1000, 128356), (2000, 64178), (4000, 32089)]