20904142952

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 256

約数和(自身を含む): 51945062400

約数和(自身を除く): 31040919448

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 83, 88, 109, 121, 124, 154, 166, 217, 218, 242, 248, 308, 332, 341, 434, 436, 484, 581, 616, 664, 682, 763, 847, 868, 872, 913, 968, 1162, 1199, 1331, 1364, 1526, 1694, 1736, 1826, 2324, 2387, 2398, 2573, 2662, 2728, 3052, 3379, 3388, 3652, 3751, 4648, 4774, 4796, 5146, 5324, 6104, 6391, 6758, 6776, 7304, 7502, 8393, 9047, 9317, 9548, 9592, 10043, 10292, 10648, 12782, 13189, 13516, 15004, 16786, 18011, 18094, 18634, 19096, 20086, 20584, 23653, 25564, 26257, 26378, 27032, 28303, 30008, 33572, 36022, 36188, 37169, 37268, 40172, 41261, 47306, 51128, 52514, 52756, 56606, 63329, 67144, 70301, 72044, 72376, 74338, 74536, 80344, 82522, 92323, 94612, 99517, 105028, 105512, 110473, 113212, 126658, 140602, 144088, 145079, 148676, 165044, 184646, 189224, 198121, 199034, 210056, 220946, 226424, 253316, 260183, 280457, 281204, 288827, 290158, 297352, 311333, 330088, 369292, 396242, 398068, 408859, 441892, 506632, 520366, 560914, 562408, 577654, 580316, 622666, 696619, 738584, 773311, 792484, 796136, 817718, 883784, 1015553, 1040732, 1094687, 1121828, 1155308, 1160632, 1245332, 1393238, 1546622, 1584968, 1635436, 1963199, 2031106, 2081464, 2179331, 2189374, 2243656, 2310616, 2490664, 2786476, 2862013, 3085027, 3093244, 3270872, 3424663, 3926398, 4062212, 4358662, 4378748, 4497449, 5572952, 5724026, 6170054, 6186488, 6849326, 7662809, 7852796, 8124424, 8717324, 8757496, 8994898, 11448052, 12041557, 12340108, 13698652, 15325618, 15705592, 17434648, 17989796, 21595189, 22896104, 23972641, 24083114, 24680216, 27397304, 30651236, 31482143, 33935297, 35979592, 43190378, 47945282, 48166228, 61302472, 62964286, 67870594, 84290899, 86380756, 95890564, 96332456, 125928572, 135741188, 168581798, 172761512, 191781128, 237547079, 251857144, 271482376, 337163596, 373288267, 475094158, 674327192, 746576534, 950188316, 1493153068, 1900376632, 2613017869, 2986306136, 5226035738, 10452071476, 20904142952]

約数ペア:

[(1, 20904142952), (2, 10452071476), (4, 5226035738), (7, 2986306136), (8, 2613017869), (11, 1900376632), (14, 1493153068), (22, 950188316), (28, 746576534), (31, 674327192), (44, 475094158), (56, 373288267), (62, 337163596), (77, 271482376), (83, 251857144), (88, 237547079), (109, 191781128), (121, 172761512), (124, 168581798), (154, 135741188), (166, 125928572), (217, 96332456), (218, 95890564), (242, 86380756), (248, 84290899), (308, 67870594), (332, 62964286), (341, 61302472), (434, 48166228), (436, 47945282), (484, 43190378), (581, 35979592), (616, 33935297), (664, 31482143), (682, 30651236), (763, 27397304), (847, 24680216), (868, 24083114), (872, 23972641), (913, 22896104), (968, 21595189), (1162, 17989796), (1199, 17434648), (1331, 15705592), (1364, 15325618), (1526, 13698652), (1694, 12340108), (1736, 12041557), (1826, 11448052), (2324, 8994898), (2387, 8757496), (2398, 8717324), (2573, 8124424), (2662, 7852796), (2728, 7662809), (3052, 6849326), (3379, 6186488), (3388, 6170054), (3652, 5724026), (3751, 5572952), (4648, 4497449), (4774, 4378748), (4796, 4358662), (5146, 4062212), (5324, 3926398), (6104, 3424663), (6391, 3270872), (6758, 3093244), (6776, 3085027), (7304, 2862013), (7502, 2786476), (8393, 2490664), (9047, 2310616), (9317, 2243656), (9548, 2189374), (9592, 2179331), (10043, 2081464), (10292, 2031106), (10648, 1963199), (12782, 1635436), (13189, 1584968), (13516, 1546622), (15004, 1393238), (16786, 1245332), (18011, 1160632), (18094, 1155308), (18634, 1121828), (19096, 1094687), (20086, 1040732), (20584, 1015553), (23653, 883784), (25564, 817718), (26257, 796136), (26378, 792484), (27032, 773311), (28303, 738584), (30008, 696619), (33572, 622666), (36022, 580316), (36188, 577654), (37169, 562408), (37268, 560914), (40172, 520366), (41261, 506632), (47306, 441892), (51128, 408859), (52514, 398068), (52756, 396242), (56606, 369292), (63329, 330088), (67144, 311333), (70301, 297352), (72044, 290158), (72376, 288827), (74338, 281204), (74536, 280457), (80344, 260183), (82522, 253316), (92323, 226424), (94612, 220946), (99517, 210056), (105028, 199034), (105512, 198121), (110473, 189224), (113212, 184646), (126658, 165044), (140602, 148676), (144088, 145079)]