20297776

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2903}}^1$

素因数の和:2953

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 22913744

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2903, 3496, 5806, 6992, 11612, 23224, 46448, 55157, 66769, 110314, 133538, 220628, 267076, 441256, 534152, 882512, 1068304, 1268611, 2537222, 5074444, 10148888, 20297776]

約数ペア:

[(1, 20297776), (2, 10148888), (4, 5074444), (8, 2537222), (16, 1268611), (19, 1068304), (23, 882512), (38, 534152), (46, 441256), (76, 267076), (92, 220628), (152, 133538), (184, 110314), (304, 66769), (368, 55157), (437, 46448), (874, 23224), (1748, 11612), (2903, 6992), (3496, 5806)]