1340986880

素因数分解:

$2^9\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2659}}^1$

素因数の和:2879

約数の個数: 80

約数和(自身を含む): 3232761840

約数和(自身を除く): 1891774960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 512, 640, 788, 985, 1280, 1576, 1970, 2560, 2659, 3152, 3940, 5318, 6304, 7880, 10636, 12608, 13295, 15760, 21272, 25216, 26590, 31520, 42544, 50432, 53180, 63040, 85088, 100864, 106360, 126080, 170176, 212720, 252160, 340352, 425440, 504320, 523823, 680704, 850880, 1047646, 1361408, 1701760, 2095292, 2619115, 3403520, 4190584, 5238230, 6807040, 8381168, 10476460, 16762336, 20952920, 33524672, 41905840, 67049344, 83811680, 134098688, 167623360, 268197376, 335246720, 670493440, 1340986880]

約数ペア:

[(1, 1340986880), (2, 670493440), (4, 335246720), (5, 268197376), (8, 167623360), (10, 134098688), (16, 83811680), (20, 67049344), (32, 41905840), (40, 33524672), (64, 20952920), (80, 16762336), (128, 10476460), (160, 8381168), (197, 6807040), (256, 5238230), (320, 4190584), (394, 3403520), (512, 2619115), (640, 2095292), (788, 1701760), (985, 1361408), (1280, 1047646), (1576, 850880), (1970, 680704), (2560, 523823), (2659, 504320), (3152, 425440), (3940, 340352), (5318, 252160), (6304, 212720), (7880, 170176), (10636, 126080), (12608, 106360), (13295, 100864), (15760, 85088), (21272, 63040), (25216, 53180), (26590, 50432), (31520, 42544)]