20187547820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 192

約数和(自身を含む): 49003315200

約数和(自身を除く): 28815767380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 79, 89, 110, 124, 155, 158, 178, 220, 310, 316, 341, 356, 395, 421, 445, 620, 682, 790, 842, 869, 890, 979, 1364, 1580, 1684, 1705, 1738, 1780, 1958, 2105, 2449, 2759, 3410, 3476, 3916, 4210, 4345, 4631, 4895, 4898, 5518, 6820, 7031, 8420, 8690, 9262, 9790, 9796, 11036, 12245, 13051, 13795, 14062, 17380, 18524, 19580, 23155, 24490, 26102, 26939, 27590, 28124, 30349, 33259, 35155, 37469, 46310, 48980, 52204, 53878, 55180, 60698, 65255, 66518, 70310, 74938, 77341, 92620, 107756, 121396, 130510, 133036, 134695, 140620, 143561, 149876, 151745, 154682, 166295, 187345, 217961, 261020, 269390, 287122, 303490, 309364, 332590, 365849, 374690, 386705, 412159, 435922, 538780, 574244, 606980, 665180, 717805, 731698, 749380, 773410, 824318, 871844, 1031029, 1089805, 1161539, 1435610, 1463396, 1546820, 1648636, 1829245, 2060795, 2062058, 2179610, 2323078, 2397571, 2871220, 2960051, 3658490, 4121590, 4124116, 4359220, 4646156, 4795142, 5155145, 5807695, 5920102, 7316980, 8243180, 9590284, 10310290, 11341319, 11615390, 11840204, 11987855, 12776929, 14800255, 20620580, 22682638, 23230780, 23975710, 25553858, 29600510, 32560561, 45365276, 47951420, 51107716, 56706595, 59201020, 63884645, 65121122, 91761581, 113413190, 127769290, 130242244, 162802805, 183523162, 226826380, 255538580, 325605610, 367046324, 458807905, 651211220, 917615810, 1009377391, 1835231620, 2018754782, 4037509564, 5046886955, 10093773910, 20187547820]

約数ペア:

[(1, 20187547820), (2, 10093773910), (4, 5046886955), (5, 4037509564), (10, 2018754782), (11, 1835231620), (20, 1009377391), (22, 917615810), (31, 651211220), (44, 458807905), (55, 367046324), (62, 325605610), (79, 255538580), (89, 226826380), (110, 183523162), (124, 162802805), (155, 130242244), (158, 127769290), (178, 113413190), (220, 91761581), (310, 65121122), (316, 63884645), (341, 59201020), (356, 56706595), (395, 51107716), (421, 47951420), (445, 45365276), (620, 32560561), (682, 29600510), (790, 25553858), (842, 23975710), (869, 23230780), (890, 22682638), (979, 20620580), (1364, 14800255), (1580, 12776929), (1684, 11987855), (1705, 11840204), (1738, 11615390), (1780, 11341319), (1958, 10310290), (2105, 9590284), (2449, 8243180), (2759, 7316980), (3410, 5920102), (3476, 5807695), (3916, 5155145), (4210, 4795142), (4345, 4646156), (4631, 4359220), (4895, 4124116), (4898, 4121590), (5518, 3658490), (6820, 2960051), (7031, 2871220), (8420, 2397571), (8690, 2323078), (9262, 2179610), (9790, 2062058), (9796, 2060795), (11036, 1829245), (12245, 1648636), (13051, 1546820), (13795, 1463396), (14062, 1435610), (17380, 1161539), (18524, 1089805), (19580, 1031029), (23155, 871844), (24490, 824318), (26102, 773410), (26939, 749380), (27590, 731698), (28124, 717805), (30349, 665180), (33259, 606980), (35155, 574244), (37469, 538780), (46310, 435922), (48980, 412159), (52204, 386705), (53878, 374690), (55180, 365849), (60698, 332590), (65255, 309364), (66518, 303490), (70310, 287122), (74938, 269390), (77341, 261020), (92620, 217961), (107756, 187345), (121396, 166295), (130510, 154682), (133036, 151745), (134695, 149876), (140620, 143561)]