1780493648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{42751}}^1$

素因数の和:42915

約数の個数: 40

約数和(自身を含む): 3657861120

約数和(自身を除く): 1877367472

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 137, 152, 274, 304, 548, 1096, 2192, 2603, 5206, 10412, 20824, 41648, 42751, 85502, 171004, 342008, 684016, 812269, 1624538, 3249076, 5856887, 6498152, 11713774, 12996304, 23427548, 46855096, 93710192, 111280853, 222561706, 445123412, 890246824, 1780493648]

約数ペア:

[(1, 1780493648), (2, 890246824), (4, 445123412), (8, 222561706), (16, 111280853), (19, 93710192), (38, 46855096), (76, 23427548), (137, 12996304), (152, 11713774), (274, 6498152), (304, 5856887), (548, 3249076), (1096, 1624538), (2192, 812269), (2603, 684016), (5206, 342008), (10412, 171004), (20824, 85502), (41648, 42751)]