20445888960

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{144883}}^1$

素因数の和:144920

約数の個数: 252

約数和(自身を含む): 81807591528

約数和(自身を除く): 61361702568

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 672, 720, 735, 784, 840, 882, 960, 980, 1008, 1120, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2240, 2352, 2520, 2880, 2940, 3136, 3360, 3528, 3920, 4032, 4410, 4704, 5040, 5880, 6720, 7056, 7840, 8820, 9408, 10080, 11760, 14112, 15680, 17640, 20160, 23520, 28224, 35280, 47040, 70560, 141120, 144883, 289766, 434649, 579532, 724415, 869298, 1014181, 1159064, 1303947, 1448830, 1738596, 2028362, 2173245, 2318128, 2607894, 2897660, 3042543, 3477192, 4056724, 4346490, 4636256, 5070905, 5215788, 5795320, 6085086, 6519735, 6954384, 7099267, 8113448, 8692980, 9127629, 9272512, 10141810, 10431576, 11590640, 12170172, 13039470, 13908768, 14198534, 15212715, 16226896, 17385960, 18255258, 20283620, 20863152, 21297801, 23181280, 24340344, 26078940, 27817536, 28397068, 30425430, 32453792, 34771920, 35496335, 36510516, 40567240, 41726304, 42595602, 45638145, 46362560, 48680688, 52157880, 56794136, 60850860, 63893403, 64907584, 69543840, 70992670, 73021032, 81134480, 83452608, 85191204, 91276290, 97361376, 104315760, 106489005, 113588272, 121701720, 127786806, 139087680, 141985340, 146042064, 162268960, 170382408, 182552580, 194722752, 208631520, 212978010, 227176544, 243403440, 255573612, 283970680, 292084128, 319467015, 324537920, 340764816, 365105160, 417263040, 425956020, 454353088, 486806880, 511147224, 567941360, 584168256, 638934030, 681529632, 730210320, 851912040, 973613760, 1022294448, 1135882720, 1277868060, 1363059264, 1460420640, 1703824080, 2044588896, 2271765440, 2555736120, 2920841280, 3407648160, 4089177792, 5111472240, 6815296320, 10222944480, 20445888960]

約数ペア:

[(1, 20445888960), (2, 10222944480), (3, 6815296320), (4, 5111472240), (5, 4089177792), (6, 3407648160), (7, 2920841280), (8, 2555736120), (9, 2271765440), (10, 2044588896), (12, 1703824080), (14, 1460420640), (15, 1363059264), (16, 1277868060), (18, 1135882720), (20, 1022294448), (21, 973613760), (24, 851912040), (28, 730210320), (30, 681529632), (32, 638934030), (35, 584168256), (36, 567941360), (40, 511147224), (42, 486806880), (45, 454353088), (48, 425956020), (49, 417263040), (56, 365105160), (60, 340764816), (63, 324537920), (64, 319467015), (70, 292084128), (72, 283970680), (80, 255573612), (84, 243403440), (90, 227176544), (96, 212978010), (98, 208631520), (105, 194722752), (112, 182552580), (120, 170382408), (126, 162268960), (140, 146042064), (144, 141985340), (147, 139087680), (160, 127786806), (168, 121701720), (180, 113588272), (192, 106489005), (196, 104315760), (210, 97361376), (224, 91276290), (240, 85191204), (245, 83452608), (252, 81134480), (280, 73021032), (288, 70992670), (294, 69543840), (315, 64907584), (320, 63893403), (336, 60850860), (360, 56794136), (392, 52157880), (420, 48680688), (441, 46362560), (448, 45638145), (480, 42595602), (490, 41726304), (504, 40567240), (560, 36510516), (576, 35496335), (588, 34771920), (630, 32453792), (672, 30425430), (720, 28397068), (735, 27817536), (784, 26078940), (840, 24340344), (882, 23181280), (960, 21297801), (980, 20863152), (1008, 20283620), (1120, 18255258), (1176, 17385960), (1260, 16226896), (1344, 15212715), (1440, 14198534), (1470, 13908768), (1568, 13039470), (1680, 12170172), (1764, 11590640), (1960, 10431576), (2016, 10141810), (2205, 9272512), (2240, 9127629), (2352, 8692980), (2520, 8113448), (2880, 7099267), (2940, 6954384), (3136, 6519735), (3360, 6085086), (3528, 5795320), (3920, 5215788), (4032, 5070905), (4410, 4636256), (4704, 4346490), (5040, 4056724), (5880, 3477192), (6720, 3042543), (7056, 2897660), (7840, 2607894), (8820, 2318128), (9408, 2173245), (10080, 2028362), (11760, 1738596), (14112, 1448830), (15680, 1303947), (17640, 1159064), (20160, 1014181), (23520, 869298), (28224, 724415), (35280, 579532), (47040, 434649), (70560, 289766), (141120, 144883)]