20426560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{829}}^1$

素因数の和:864

約数の個数: 112

約数和(自身を含む): 60716160

約数和(自身を除く): 40289600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 829, 880, 1120, 1232, 1540, 1658, 1760, 2240, 2464, 3080, 3316, 3520, 4145, 4928, 5803, 6160, 6632, 8290, 9119, 11606, 12320, 13264, 16580, 18238, 23212, 24640, 26528, 29015, 33160, 36476, 45595, 46424, 53056, 58030, 63833, 66320, 72952, 91190, 92848, 116060, 127666, 132640, 145904, 182380, 185696, 232120, 255332, 265280, 291808, 319165, 364760, 371392, 464240, 510664, 583616, 638330, 729520, 928480, 1021328, 1276660, 1459040, 1856960, 2042656, 2553320, 2918080, 4085312, 5106640, 10213280, 20426560]

約数ペア:

[(1, 20426560), (2, 10213280), (4, 5106640), (5, 4085312), (7, 2918080), (8, 2553320), (10, 2042656), (11, 1856960), (14, 1459040), (16, 1276660), (20, 1021328), (22, 928480), (28, 729520), (32, 638330), (35, 583616), (40, 510664), (44, 464240), (55, 371392), (56, 364760), (64, 319165), (70, 291808), (77, 265280), (80, 255332), (88, 232120), (110, 185696), (112, 182380), (140, 145904), (154, 132640), (160, 127666), (176, 116060), (220, 92848), (224, 91190), (280, 72952), (308, 66320), (320, 63833), (352, 58030), (385, 53056), (440, 46424), (448, 45595), (560, 36476), (616, 33160), (704, 29015), (770, 26528), (829, 24640), (880, 23212), (1120, 18238), (1232, 16580), (1540, 13264), (1658, 12320), (1760, 11606), (2240, 9119), (2464, 8290), (3080, 6632), (3316, 6160), (3520, 5803), (4145, 4928)]