21544400

素因数分解:

$2^4\times 5^2\times {\mathrm{53861}}^1$

素因数の和:53879

約数の個数: 30

約数和(自身を含む): 51761382

約数和(自身を除く): 30216982

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53861, 107722, 215444, 269305, 430888, 538610, 861776, 1077220, 1346525, 2154440, 2693050, 4308880, 5386100, 10772200, 21544400]

約数ペア:

[(1, 21544400), (2, 10772200), (4, 5386100), (5, 4308880), (8, 2693050), (10, 2154440), (16, 1346525), (20, 1077220), (25, 861776), (40, 538610), (50, 430888), (80, 269305), (100, 215444), (200, 107722), (400, 53861)]