21647500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{1237}}^1$

素因数の和:1268

約数の個数: 60

約数和(自身を含む): 54145168

約数和(自身を除く): 32497668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1237, 1250, 1750, 2474, 2500, 3500, 4375, 4948, 6185, 8659, 8750, 12370, 17318, 17500, 24740, 30925, 34636, 43295, 61850, 86590, 123700, 154625, 173180, 216475, 309250, 432950, 618500, 773125, 865900, 1082375, 1546250, 2164750, 3092500, 4329500, 5411875, 10823750, 21647500]

約数ペア:

[(1, 21647500), (2, 10823750), (4, 5411875), (5, 4329500), (7, 3092500), (10, 2164750), (14, 1546250), (20, 1082375), (25, 865900), (28, 773125), (35, 618500), (50, 432950), (70, 309250), (100, 216475), (125, 173180), (140, 154625), (175, 123700), (250, 86590), (350, 61850), (500, 43295), (625, 34636), (700, 30925), (875, 24740), (1237, 17500), (1250, 17318), (1750, 12370), (2474, 8750), (2500, 8659), (3500, 6185), (4375, 4948)]