81305224

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 210288960

約数和(自身を除く): 128983736

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 71, 77, 88, 91, 104, 121, 142, 143, 154, 169, 182, 242, 284, 286, 308, 338, 364, 484, 497, 568, 572, 616, 676, 728, 781, 847, 923, 968, 994, 1001, 1144, 1183, 1352, 1562, 1573, 1694, 1846, 1859, 1988, 2002, 2366, 3124, 3146, 3388, 3692, 3718, 3976, 4004, 4732, 5467, 6248, 6292, 6461, 6776, 7384, 7436, 8008, 8591, 9464, 10153, 10934, 11011, 11999, 12584, 12922, 13013, 14872, 17182, 20306, 20449, 21868, 22022, 23998, 25844, 26026, 34364, 40612, 40898, 43736, 44044, 47996, 51688, 52052, 60137, 68728, 71071, 81224, 81796, 83993, 88088, 95992, 104104, 111683, 120274, 131989, 142142, 143143, 163592, 167986, 223366, 240548, 263978, 284284, 286286, 335972, 446732, 481096, 527956, 568568, 572572, 671944, 781781, 893464, 923923, 1055912, 1145144, 1451879, 1563562, 1847846, 2903758, 3127124, 3695692, 5807516, 6254248, 7391384, 10163153, 11615032, 20326306, 40652612, 81305224]

約数ペア:

[(1, 81305224), (2, 40652612), (4, 20326306), (7, 11615032), (8, 10163153), (11, 7391384), (13, 6254248), (14, 5807516), (22, 3695692), (26, 3127124), (28, 2903758), (44, 1847846), (52, 1563562), (56, 1451879), (71, 1145144), (77, 1055912), (88, 923923), (91, 893464), (104, 781781), (121, 671944), (142, 572572), (143, 568568), (154, 527956), (169, 481096), (182, 446732), (242, 335972), (284, 286286), (286, 284284), (308, 263978), (338, 240548), (364, 223366), (484, 167986), (497, 163592), (568, 143143), (572, 142142), (616, 131989), (676, 120274), (728, 111683), (781, 104104), (847, 95992), (923, 88088), (968, 83993), (994, 81796), (1001, 81224), (1144, 71071), (1183, 68728), (1352, 60137), (1562, 52052), (1573, 51688), (1694, 47996), (1846, 44044), (1859, 43736), (1988, 40898), (2002, 40612), (2366, 34364), (3124, 26026), (3146, 25844), (3388, 23998), (3692, 22022), (3718, 21868), (3976, 20449), (4004, 20306), (4732, 17182), (5467, 14872), (6248, 13013), (6292, 12922), (6461, 12584), (6776, 11999), (7384, 11011), (7436, 10934), (8008, 10153), (8591, 9464)]