16780451408

素因数分解:

$2^4\times 7^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{3581}}^1$

素因数の和:3785

約数の個数: 120

約数和(自身を含む): 38989067040

約数和(自身を除く): 22208615632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 49, 56, 86, 98, 112, 139, 172, 196, 278, 301, 344, 392, 556, 602, 688, 784, 973, 1112, 1204, 1946, 2107, 2224, 2408, 3581, 3892, 4214, 4816, 5977, 6811, 7162, 7784, 8428, 11954, 13622, 14324, 15568, 16856, 23908, 25067, 27244, 28648, 33712, 41839, 47816, 50134, 54488, 57296, 83678, 95632, 100268, 108976, 153983, 167356, 175469, 200536, 292873, 307966, 334712, 350938, 401072, 497759, 585746, 615932, 669424, 701876, 995518, 1077881, 1171492, 1231864, 1403752, 1991036, 2155762, 2342984, 2463728, 2807504, 3484313, 3982072, 4311524, 4685968, 6968626, 7545167, 7964144, 8623048, 13937252, 15090334, 17246096, 21403637, 24390191, 27874504, 30180668, 42807274, 48780382, 55749008, 60361336, 85614548, 97560764, 120722672, 149825459, 171229096, 195121528, 299650918, 342458192, 390243056, 599301836, 1048778213, 1198603672, 2097556426, 2397207344, 4195112852, 8390225704, 16780451408]

約数ペア:

[(1, 16780451408), (2, 8390225704), (4, 4195112852), (7, 2397207344), (8, 2097556426), (14, 1198603672), (16, 1048778213), (28, 599301836), (43, 390243056), (49, 342458192), (56, 299650918), (86, 195121528), (98, 171229096), (112, 149825459), (139, 120722672), (172, 97560764), (196, 85614548), (278, 60361336), (301, 55749008), (344, 48780382), (392, 42807274), (556, 30180668), (602, 27874504), (688, 24390191), (784, 21403637), (973, 17246096), (1112, 15090334), (1204, 13937252), (1946, 8623048), (2107, 7964144), (2224, 7545167), (2408, 6968626), (3581, 4685968), (3892, 4311524), (4214, 3982072), (4816, 3484313), (5977, 2807504), (6811, 2463728), (7162, 2342984), (7784, 2155762), (8428, 1991036), (11954, 1403752), (13622, 1231864), (14324, 1171492), (15568, 1077881), (16856, 995518), (23908, 701876), (25067, 669424), (27244, 615932), (28648, 585746), (33712, 497759), (41839, 401072), (47816, 350938), (50134, 334712), (54488, 307966), (57296, 292873), (83678, 200536), (95632, 175469), (100268, 167356), (108976, 153983)]