28440160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:468

約数の個数: 96

約数和(自身を含む): 78140160

約数和(自身を除く): 49700000

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, 280, 335, 379, 469, 536, 560, 670, 758, 938, 1072, 1120, 1340, 1516, 1876, 1895, 2144, 2345, 2653, 2680, 3032, 3752, 3790, 4690, 5306, 5360, 6064, 7504, 7580, 9380, 10612, 10720, 12128, 13265, 15008, 15160, 18760, 21224, 25393, 26530, 30320, 37520, 42448, 50786, 53060, 60640, 75040, 84896, 101572, 106120, 126965, 177751, 203144, 212240, 253930, 355502, 406288, 424480, 507860, 711004, 812576, 888755, 1015720, 1422008, 1777510, 2031440, 2844016, 3555020, 4062880, 5688032, 7110040, 14220080, 28440160]

約数ペア:

[(1, 28440160), (2, 14220080), (4, 7110040), (5, 5688032), (7, 4062880), (8, 3555020), (10, 2844016), (14, 2031440), (16, 1777510), (20, 1422008), (28, 1015720), (32, 888755), (35, 812576), (40, 711004), (56, 507860), (67, 424480), (70, 406288), (80, 355502), (112, 253930), (134, 212240), (140, 203144), (160, 177751), (224, 126965), (268, 106120), (280, 101572), (335, 84896), (379, 75040), (469, 60640), (536, 53060), (560, 50786), (670, 42448), (758, 37520), (938, 30320), (1072, 26530), (1120, 25393), (1340, 21224), (1516, 18760), (1876, 15160), (1895, 15008), (2144, 13265), (2345, 12128), (2653, 10720), (2680, 10612), (3032, 9380), (3752, 7580), (3790, 7504), (4690, 6064), (5306, 5360)]