90110020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:690

約数の個数: 144

約数和(自身を含む): 259011648

約数和(自身を除く): 168901628

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 286, 308, 364, 385, 455, 490, 539, 572, 637, 643, 715, 770, 910, 980, 1001, 1078, 1274, 1286, 1430, 1540, 1820, 2002, 2156, 2548, 2572, 2695, 2860, 3185, 3215, 4004, 4501, 5005, 5390, 6370, 6430, 7007, 7073, 8359, 9002, 10010, 10780, 12740, 12860, 14014, 14146, 16718, 18004, 20020, 22505, 28028, 28292, 31507, 33436, 35035, 35365, 41795, 45010, 49511, 58513, 63014, 70070, 70730, 83590, 90020, 91949, 99022, 117026, 126028, 140140, 141460, 157535, 167180, 183898, 198044, 234052, 247555, 292565, 315070, 346577, 367796, 409591, 459745, 495110, 585130, 630140, 643643, 693154, 819182, 919490, 990220, 1170260, 1287286, 1386308, 1638364, 1732885, 1838980, 2047955, 2574572, 3218215, 3465770, 4095910, 4505501, 6436430, 6931540, 8191820, 9011002, 12872860, 18022004, 22527505, 45055010, 90110020]

約数ペア:

[(1, 90110020), (2, 45055010), (4, 22527505), (5, 18022004), (7, 12872860), (10, 9011002), (11, 8191820), (13, 6931540), (14, 6436430), (20, 4505501), (22, 4095910), (26, 3465770), (28, 3218215), (35, 2574572), (44, 2047955), (49, 1838980), (52, 1732885), (55, 1638364), (65, 1386308), (70, 1287286), (77, 1170260), (91, 990220), (98, 919490), (110, 819182), (130, 693154), (140, 643643), (143, 630140), (154, 585130), (182, 495110), (196, 459745), (220, 409591), (245, 367796), (260, 346577), (286, 315070), (308, 292565), (364, 247555), (385, 234052), (455, 198044), (490, 183898), (539, 167180), (572, 157535), (637, 141460), (643, 140140), (715, 126028), (770, 117026), (910, 99022), (980, 91949), (1001, 90020), (1078, 83590), (1274, 70730), (1286, 70070), (1430, 63014), (1540, 58513), (1820, 49511), (2002, 45010), (2156, 41795), (2548, 35365), (2572, 35035), (2695, 33436), (2860, 31507), (3185, 28292), (3215, 28028), (4004, 22505), (4501, 20020), (5005, 18004), (5390, 16718), (6370, 14146), (6430, 14014), (7007, 12860), (7073, 12740), (8359, 10780), (9002, 10010)]