20197780672

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{3911}}^1$

素因数の和:4110

約数の個数: 112

約数和(自身を含む): 43879495680

約数和(自身を除く): 23681715008

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 137, 152, 248, 274, 304, 496, 548, 589, 608, 992, 1096, 1178, 1216, 1984, 2192, 2356, 2603, 3911, 4247, 4384, 4712, 5206, 7822, 8494, 8768, 9424, 10412, 15644, 16988, 18848, 20824, 31288, 33976, 37696, 41648, 62576, 67952, 74309, 80693, 83296, 121241, 125152, 135904, 148618, 161386, 166592, 242482, 250304, 271808, 297236, 322772, 484964, 535807, 594472, 645544, 969928, 1071614, 1188944, 1291088, 1939856, 2143228, 2303579, 2377888, 2582176, 3879712, 4286456, 4607158, 4755776, 5164352, 7759424, 8572912, 9214316, 10180333, 16610017, 17145824, 18428632, 20360666, 33220034, 34291648, 36857264, 40721332, 66440068, 73714528, 81442664, 132880136, 147429056, 162885328, 265760272, 315590323, 325770656, 531520544, 631180646, 651541312, 1063041088, 1262361292, 2524722584, 5049445168, 10098890336, 20197780672]

約数ペア:

[(1, 20197780672), (2, 10098890336), (4, 5049445168), (8, 2524722584), (16, 1262361292), (19, 1063041088), (31, 651541312), (32, 631180646), (38, 531520544), (62, 325770656), (64, 315590323), (76, 265760272), (124, 162885328), (137, 147429056), (152, 132880136), (248, 81442664), (274, 73714528), (304, 66440068), (496, 40721332), (548, 36857264), (589, 34291648), (608, 33220034), (992, 20360666), (1096, 18428632), (1178, 17145824), (1216, 16610017), (1984, 10180333), (2192, 9214316), (2356, 8572912), (2603, 7759424), (3911, 5164352), (4247, 4755776), (4384, 4607158), (4712, 4286456), (5206, 3879712), (7822, 2582176), (8494, 2377888), (8768, 2303579), (9424, 2143228), (10412, 1939856), (15644, 1291088), (16988, 1188944), (18848, 1071614), (20824, 969928), (31288, 645544), (33976, 594472), (37696, 535807), (41648, 484964), (62576, 322772), (67952, 297236), (74309, 271808), (80693, 250304), (83296, 242482), (121241, 166592), (125152, 161386), (135904, 148618)]