20401568

素因数分解:

$2^5\times {\mathrm{11}}^3\times {\mathrm{479}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 23869792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 121, 176, 242, 352, 479, 484, 958, 968, 1331, 1916, 1936, 2662, 3832, 3872, 5269, 5324, 7664, 10538, 10648, 15328, 21076, 21296, 42152, 42592, 57959, 84304, 115918, 168608, 231836, 463672, 637549, 927344, 1275098, 1854688, 2550196, 5100392, 10200784, 20401568]

約数ペア:

[(1, 20401568), (2, 10200784), (4, 5100392), (8, 2550196), (11, 1854688), (16, 1275098), (22, 927344), (32, 637549), (44, 463672), (88, 231836), (121, 168608), (176, 115918), (242, 84304), (352, 57959), (479, 42592), (484, 42152), (958, 21296), (968, 21076), (1331, 15328), (1916, 10648), (1936, 10538), (2662, 7664), (3832, 5324), (3872, 5269)]