20775040

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 58605120

約数和(自身を除く): 37830080

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 227, 260, 286, 320, 352, 416, 440, 454, 520, 572, 640, 704, 715, 832, 880, 908, 1040, 1135, 1144, 1408, 1430, 1664, 1760, 1816, 2080, 2270, 2288, 2497, 2860, 2951, 3520, 3632, 4160, 4540, 4576, 4994, 5720, 5902, 7040, 7264, 8320, 9080, 9152, 9988, 11440, 11804, 12485, 14528, 14755, 18160, 18304, 19976, 22880, 23608, 24970, 29056, 29510, 32461, 36320, 39952, 45760, 47216, 49940, 59020, 64922, 72640, 79904, 91520, 94432, 99880, 118040, 129844, 145280, 159808, 162305, 188864, 199760, 236080, 259688, 319616, 324610, 377728, 399520, 472160, 519376, 649220, 799040, 944320, 1038752, 1298440, 1598080, 1888640, 2077504, 2596880, 4155008, 5193760, 10387520, 20775040]

約数ペア:

[(1, 20775040), (2, 10387520), (4, 5193760), (5, 4155008), (8, 2596880), (10, 2077504), (11, 1888640), (13, 1598080), (16, 1298440), (20, 1038752), (22, 944320), (26, 799040), (32, 649220), (40, 519376), (44, 472160), (52, 399520), (55, 377728), (64, 324610), (65, 319616), (80, 259688), (88, 236080), (104, 199760), (110, 188864), (128, 162305), (130, 159808), (143, 145280), (160, 129844), (176, 118040), (208, 99880), (220, 94432), (227, 91520), (260, 79904), (286, 72640), (320, 64922), (352, 59020), (416, 49940), (440, 47216), (454, 45760), (520, 39952), (572, 36320), (640, 32461), (704, 29510), (715, 29056), (832, 24970), (880, 23608), (908, 22880), (1040, 19976), (1135, 18304), (1144, 18160), (1408, 14755), (1430, 14528), (1664, 12485), (1760, 11804), (1816, 11440), (2080, 9988), (2270, 9152), (2288, 9080), (2497, 8320), (2860, 7264), (2951, 7040), (3520, 5902), (3632, 5720), (4160, 4994), (4540, 4576)]