12564400

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:430

約数の個数: 60

約数和(自身を含む): 30582864

約数和(自身を除く): 18018464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 311, 400, 404, 505, 622, 808, 1010, 1244, 1555, 1616, 2020, 2488, 2525, 3110, 4040, 4976, 5050, 6220, 7775, 8080, 10100, 12440, 15550, 20200, 24880, 31100, 31411, 40400, 62200, 62822, 124400, 125644, 157055, 251288, 314110, 502576, 628220, 785275, 1256440, 1570550, 2512880, 3141100, 6282200, 12564400]

約数ペア:

[(1, 12564400), (2, 6282200), (4, 3141100), (5, 2512880), (8, 1570550), (10, 1256440), (16, 785275), (20, 628220), (25, 502576), (40, 314110), (50, 251288), (80, 157055), (100, 125644), (101, 124400), (200, 62822), (202, 62200), (311, 40400), (400, 31411), (404, 31100), (505, 24880), (622, 20200), (808, 15550), (1010, 12440), (1244, 10100), (1555, 8080), (1616, 7775), (2020, 6220), (2488, 5050), (2525, 4976), (3110, 4040)]