21536600

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 50387400

約数和(自身を除く): 28850800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 419, 514, 838, 1028, 1285, 1676, 2056, 2095, 2570, 3352, 4190, 5140, 6425, 8380, 10280, 10475, 12850, 16760, 20950, 25700, 41900, 51400, 83800, 107683, 215366, 430732, 538415, 861464, 1076830, 2153660, 2692075, 4307320, 5384150, 10768300, 21536600]

約数ペア:

[(1, 21536600), (2, 10768300), (4, 5384150), (5, 4307320), (8, 2692075), (10, 2153660), (20, 1076830), (25, 861464), (40, 538415), (50, 430732), (100, 215366), (200, 107683), (257, 83800), (419, 51400), (514, 41900), (838, 25700), (1028, 20950), (1285, 16760), (1676, 12850), (2056, 10475), (2095, 10280), (2570, 8380), (3352, 6425), (4190, 5140)]