20335840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 96

約数和(自身を含む): 55931904

約数和(自身を除く): 35596064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 67, 70, 80, 112, 134, 140, 160, 224, 268, 271, 280, 335, 469, 536, 542, 560, 670, 938, 1072, 1084, 1120, 1340, 1355, 1876, 1897, 2144, 2168, 2345, 2680, 2710, 3752, 3794, 4336, 4690, 5360, 5420, 7504, 7588, 8672, 9380, 9485, 10720, 10840, 15008, 15176, 18157, 18760, 18970, 21680, 30352, 36314, 37520, 37940, 43360, 60704, 72628, 75040, 75880, 90785, 127099, 145256, 151760, 181570, 254198, 290512, 303520, 363140, 508396, 581024, 635495, 726280, 1016792, 1270990, 1452560, 2033584, 2541980, 2905120, 4067168, 5083960, 10167920, 20335840]

約数ペア:

[(1, 20335840), (2, 10167920), (4, 5083960), (5, 4067168), (7, 2905120), (8, 2541980), (10, 2033584), (14, 1452560), (16, 1270990), (20, 1016792), (28, 726280), (32, 635495), (35, 581024), (40, 508396), (56, 363140), (67, 303520), (70, 290512), (80, 254198), (112, 181570), (134, 151760), (140, 145256), (160, 127099), (224, 90785), (268, 75880), (271, 75040), (280, 72628), (335, 60704), (469, 43360), (536, 37940), (542, 37520), (560, 36314), (670, 30352), (938, 21680), (1072, 18970), (1084, 18760), (1120, 18157), (1340, 15176), (1355, 15008), (1876, 10840), (1897, 10720), (2144, 9485), (2168, 9380), (2345, 8672), (2680, 7588), (2710, 7504), (3752, 5420), (3794, 5360), (4336, 4690)]