21779520

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{463}}^1$

素因数の和:497

約数の個数: 168

約数和(自身を含む): 80613504

約数和(自身を除く): 58833984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 448, 463, 480, 490, 560, 588, 672, 735, 784, 840, 926, 960, 980, 1120, 1176, 1344, 1389, 1470, 1568, 1680, 1852, 1960, 2240, 2315, 2352, 2778, 2940, 3136, 3241, 3360, 3704, 3920, 4630, 4704, 5556, 5880, 6482, 6720, 6945, 7408, 7840, 9260, 9408, 9723, 11112, 11760, 12964, 13890, 14816, 15680, 16205, 18520, 19446, 22224, 22687, 23520, 25928, 27780, 29632, 32410, 37040, 38892, 44448, 45374, 47040, 48615, 51856, 55560, 64820, 68061, 74080, 77784, 88896, 90748, 97230, 103712, 111120, 113435, 129640, 136122, 148160, 155568, 181496, 194460, 207424, 222240, 226870, 259280, 272244, 311136, 340305, 362992, 388920, 444480, 453740, 518560, 544488, 622272, 680610, 725984, 777840, 907480, 1037120, 1088976, 1361220, 1451968, 1555680, 1814960, 2177952, 2722440, 3111360, 3629920, 4355904, 5444880, 7259840, 10889760, 21779520]

約数ペア:

[(1, 21779520), (2, 10889760), (3, 7259840), (4, 5444880), (5, 4355904), (6, 3629920), (7, 3111360), (8, 2722440), (10, 2177952), (12, 1814960), (14, 1555680), (15, 1451968), (16, 1361220), (20, 1088976), (21, 1037120), (24, 907480), (28, 777840), (30, 725984), (32, 680610), (35, 622272), (40, 544488), (42, 518560), (48, 453740), (49, 444480), (56, 388920), (60, 362992), (64, 340305), (70, 311136), (80, 272244), (84, 259280), (96, 226870), (98, 222240), (105, 207424), (112, 194460), (120, 181496), (140, 155568), (147, 148160), (160, 136122), (168, 129640), (192, 113435), (196, 111120), (210, 103712), (224, 97230), (240, 90748), (245, 88896), (280, 77784), (294, 74080), (320, 68061), (336, 64820), (392, 55560), (420, 51856), (448, 48615), (463, 47040), (480, 45374), (490, 44448), (560, 38892), (588, 37040), (672, 32410), (735, 29632), (784, 27780), (840, 25928), (926, 23520), (960, 22687), (980, 22224), (1120, 19446), (1176, 18520), (1344, 16205), (1389, 15680), (1470, 14816), (1568, 13890), (1680, 12964), (1852, 11760), (1960, 11112), (2240, 9723), (2315, 9408), (2352, 9260), (2778, 7840), (2940, 7408), (3136, 6945), (3241, 6720), (3360, 6482), (3704, 5880), (3920, 5556), (4630, 4704)]