20416803856

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{50383}}^1$

素因数の和:50484

約数の個数: 80

約数和(自身を含む): 43983216640

約数和(自身を除く): 23566412784

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 43, 62, 76, 86, 124, 152, 172, 248, 304, 344, 496, 589, 688, 817, 1178, 1333, 1634, 2356, 2666, 3268, 4712, 5332, 6536, 9424, 10664, 13072, 21328, 25327, 50383, 50654, 100766, 101308, 201532, 202616, 403064, 405232, 806128, 957277, 1561873, 1914554, 2166469, 3123746, 3829108, 4332938, 6247492, 7658216, 8665876, 12494984, 15316432, 17331752, 24989968, 29675587, 34663504, 41162911, 59351174, 67160539, 82325822, 118702348, 134321078, 164651644, 237404696, 268642156, 329303288, 474809392, 537284312, 658606576, 1074568624, 1276050241, 2552100482, 5104200964, 10208401928, 20416803856]

約数ペア:

[(1, 20416803856), (2, 10208401928), (4, 5104200964), (8, 2552100482), (16, 1276050241), (19, 1074568624), (31, 658606576), (38, 537284312), (43, 474809392), (62, 329303288), (76, 268642156), (86, 237404696), (124, 164651644), (152, 134321078), (172, 118702348), (248, 82325822), (304, 67160539), (344, 59351174), (496, 41162911), (589, 34663504), (688, 29675587), (817, 24989968), (1178, 17331752), (1333, 15316432), (1634, 12494984), (2356, 8665876), (2666, 7658216), (3268, 6247492), (4712, 4332938), (5332, 3829108), (6536, 3123746), (9424, 2166469), (10664, 1914554), (13072, 1561873), (21328, 957277), (25327, 806128), (50383, 405232), (50654, 403064), (100766, 202616), (101308, 201532)]