28156784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4027}}^1$

素因数の和:4077

約数の個数: 40

約数和(自身を含む): 59936640

約数和(自身を除く): 31779856

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 3496, 4027, 6992, 8054, 16108, 32216, 64432, 76513, 92621, 153026, 185242, 306052, 370484, 612104, 740968, 1224208, 1481936, 1759799, 3519598, 7039196, 14078392, 28156784]

約数ペア:

[(1, 28156784), (2, 14078392), (4, 7039196), (8, 3519598), (16, 1759799), (19, 1481936), (23, 1224208), (38, 740968), (46, 612104), (76, 370484), (92, 306052), (152, 185242), (184, 153026), (304, 92621), (368, 76513), (437, 64432), (874, 32216), (1748, 16108), (3496, 8054), (4027, 6992)]