28920320

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:126

約数の個数: 160

約数和(自身を含む): 82494720

約数和(自身を除く): 53574400

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 79, 80, 88, 104, 110, 128, 130, 143, 158, 160, 176, 208, 220, 256, 260, 286, 316, 320, 352, 395, 416, 440, 512, 520, 572, 632, 640, 704, 715, 790, 832, 869, 880, 1027, 1040, 1144, 1264, 1280, 1408, 1430, 1580, 1664, 1738, 1760, 2054, 2080, 2288, 2528, 2560, 2816, 2860, 3160, 3328, 3476, 3520, 4108, 4160, 4345, 4576, 5056, 5135, 5632, 5720, 6320, 6656, 6952, 7040, 8216, 8320, 8690, 9152, 10112, 10270, 11297, 11440, 12640, 13904, 14080, 16432, 16640, 17380, 18304, 20224, 20540, 22594, 22880, 25280, 27808, 28160, 32864, 33280, 34760, 36608, 40448, 41080, 45188, 45760, 50560, 55616, 56485, 65728, 69520, 73216, 82160, 90376, 91520, 101120, 111232, 112970, 131456, 139040, 164320, 180752, 183040, 202240, 222464, 225940, 262912, 278080, 328640, 361504, 366080, 444928, 451880, 525824, 556160, 657280, 723008, 903760, 1112320, 1314560, 1446016, 1807520, 2224640, 2629120, 2892032, 3615040, 5784064, 7230080, 14460160, 28920320]

約数ペア:

[(1, 28920320), (2, 14460160), (4, 7230080), (5, 5784064), (8, 3615040), (10, 2892032), (11, 2629120), (13, 2224640), (16, 1807520), (20, 1446016), (22, 1314560), (26, 1112320), (32, 903760), (40, 723008), (44, 657280), (52, 556160), (55, 525824), (64, 451880), (65, 444928), (79, 366080), (80, 361504), (88, 328640), (104, 278080), (110, 262912), (128, 225940), (130, 222464), (143, 202240), (158, 183040), (160, 180752), (176, 164320), (208, 139040), (220, 131456), (256, 112970), (260, 111232), (286, 101120), (316, 91520), (320, 90376), (352, 82160), (395, 73216), (416, 69520), (440, 65728), (512, 56485), (520, 55616), (572, 50560), (632, 45760), (640, 45188), (704, 41080), (715, 40448), (790, 36608), (832, 34760), (869, 33280), (880, 32864), (1027, 28160), (1040, 27808), (1144, 25280), (1264, 22880), (1280, 22594), (1408, 20540), (1430, 20224), (1580, 18304), (1664, 17380), (1738, 16640), (1760, 16432), (2054, 14080), (2080, 13904), (2288, 12640), (2528, 11440), (2560, 11297), (2816, 10270), (2860, 10112), (3160, 9152), (3328, 8690), (3476, 8320), (3520, 8216), (4108, 7040), (4160, 6952), (4345, 6656), (4576, 6320), (5056, 5720), (5135, 5632)]