20940146080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{21031}}^1$

素因数の和:21187

約数の個数: 144

約数和(自身を含む): 58003900416

約数和(自身を除く): 37063754336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 127, 140, 160, 196, 224, 245, 254, 280, 392, 490, 508, 560, 635, 784, 889, 980, 1016, 1120, 1270, 1568, 1778, 1960, 2032, 2540, 3556, 3920, 4064, 4445, 5080, 6223, 7112, 7840, 8890, 10160, 12446, 14224, 17780, 20320, 21031, 24892, 28448, 31115, 35560, 42062, 49784, 62230, 71120, 84124, 99568, 105155, 124460, 142240, 147217, 168248, 199136, 210310, 248920, 294434, 336496, 420620, 497840, 588868, 672992, 736085, 841240, 995680, 1030519, 1177736, 1472170, 1682480, 2061038, 2355472, 2670937, 2944340, 3364960, 4122076, 4710944, 5152595, 5341874, 5888680, 8244152, 10305190, 10683748, 11777360, 13354685, 16488304, 18696559, 20610380, 21367496, 23554720, 26709370, 32976608, 37393118, 41220760, 42734992, 53418740, 74786236, 82441520, 85469984, 93482795, 106837480, 130875913, 149572472, 164883040, 186965590, 213674960, 261751826, 299144944, 373931180, 427349920, 523503652, 598289888, 654379565, 747862360, 1047007304, 1308759130, 1495724720, 2094014608, 2617518260, 2991449440, 4188029216, 5235036520, 10470073040, 20940146080]

約数ペア:

[(1, 20940146080), (2, 10470073040), (4, 5235036520), (5, 4188029216), (7, 2991449440), (8, 2617518260), (10, 2094014608), (14, 1495724720), (16, 1308759130), (20, 1047007304), (28, 747862360), (32, 654379565), (35, 598289888), (40, 523503652), (49, 427349920), (56, 373931180), (70, 299144944), (80, 261751826), (98, 213674960), (112, 186965590), (127, 164883040), (140, 149572472), (160, 130875913), (196, 106837480), (224, 93482795), (245, 85469984), (254, 82441520), (280, 74786236), (392, 53418740), (490, 42734992), (508, 41220760), (560, 37393118), (635, 32976608), (784, 26709370), (889, 23554720), (980, 21367496), (1016, 20610380), (1120, 18696559), (1270, 16488304), (1568, 13354685), (1778, 11777360), (1960, 10683748), (2032, 10305190), (2540, 8244152), (3556, 5888680), (3920, 5341874), (4064, 5152595), (4445, 4710944), (5080, 4122076), (6223, 3364960), (7112, 2944340), (7840, 2670937), (8890, 2355472), (10160, 2061038), (12446, 1682480), (14224, 1472170), (17780, 1177736), (20320, 1030519), (21031, 995680), (24892, 841240), (28448, 736085), (31115, 672992), (35560, 588868), (42062, 497840), (49784, 420620), (62230, 336496), (71120, 294434), (84124, 248920), (99568, 210310), (105155, 199136), (124460, 168248), (142240, 147217)]