20666644544

素因数分解:

$2^6\times 7^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:706

約数の個数: 224

約数和(自身を含む): 51974496000

約数和(自身を除く): 31307851456

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 139, 182, 196, 208, 224, 278, 343, 364, 392, 416, 448, 521, 556, 637, 686, 728, 784, 832, 973, 1042, 1112, 1274, 1372, 1456, 1568, 1807, 1946, 2084, 2224, 2548, 2744, 2912, 3136, 3614, 3647, 3892, 4168, 4448, 4459, 5096, 5488, 5824, 6773, 6811, 7228, 7294, 7784, 8336, 8896, 8918, 10192, 10976, 12649, 13546, 13622, 14456, 14588, 15568, 16672, 17836, 20384, 21952, 25298, 25529, 27092, 27244, 28912, 29176, 31136, 33344, 35672, 40768, 47411, 47677, 50596, 51058, 54184, 54488, 57824, 58352, 62272, 71344, 72419, 88543, 94822, 95354, 101192, 102116, 108368, 108976, 115648, 116704, 142688, 144838, 177086, 178703, 189644, 190708, 202384, 204232, 216736, 217952, 233408, 285376, 289676, 331877, 354172, 357406, 379288, 381416, 404768, 408464, 433472, 435904, 506933, 579352, 619801, 663754, 708344, 714812, 758576, 762832, 809536, 816928, 941447, 1013866, 1158704, 1239602, 1327508, 1416688, 1429624, 1517152, 1525664, 1633856, 1882894, 2027732, 2317408, 2323139, 2479204, 2655016, 2833376, 2859248, 3034304, 3051328, 3548531, 3765788, 4055464, 4634816, 4646278, 4958408, 5310032, 5666752, 5718496, 6590129, 7097062, 7531576, 8110928, 9292556, 9916816, 10620064, 11436992, 13180258, 14194124, 15063152, 16221856, 18585112, 19833632, 21240128, 24839717, 26360516, 28388248, 30126304, 32443712, 37170224, 39667264, 46130903, 49679434, 52721032, 56776496, 60252608, 74340448, 92261806, 99358868, 105442064, 113552992, 148680896, 184523612, 198717736, 210884128, 227105984, 322916321, 369047224, 397435472, 421768256, 645832642, 738094448, 794870944, 1291665284, 1476188896, 1589741888, 2583330568, 2952377792, 5166661136, 10333322272, 20666644544]

約数ペア:

[(1, 20666644544), (2, 10333322272), (4, 5166661136), (7, 2952377792), (8, 2583330568), (13, 1589741888), (14, 1476188896), (16, 1291665284), (26, 794870944), (28, 738094448), (32, 645832642), (49, 421768256), (52, 397435472), (56, 369047224), (64, 322916321), (91, 227105984), (98, 210884128), (104, 198717736), (112, 184523612), (139, 148680896), (182, 113552992), (196, 105442064), (208, 99358868), (224, 92261806), (278, 74340448), (343, 60252608), (364, 56776496), (392, 52721032), (416, 49679434), (448, 46130903), (521, 39667264), (556, 37170224), (637, 32443712), (686, 30126304), (728, 28388248), (784, 26360516), (832, 24839717), (973, 21240128), (1042, 19833632), (1112, 18585112), (1274, 16221856), (1372, 15063152), (1456, 14194124), (1568, 13180258), (1807, 11436992), (1946, 10620064), (2084, 9916816), (2224, 9292556), (2548, 8110928), (2744, 7531576), (2912, 7097062), (3136, 6590129), (3614, 5718496), (3647, 5666752), (3892, 5310032), (4168, 4958408), (4448, 4646278), (4459, 4634816), (5096, 4055464), (5488, 3765788), (5824, 3548531), (6773, 3051328), (6811, 3034304), (7228, 2859248), (7294, 2833376), (7784, 2655016), (8336, 2479204), (8896, 2323139), (8918, 2317408), (10192, 2027732), (10976, 1882894), (12649, 1633856), (13546, 1525664), (13622, 1517152), (14456, 1429624), (14588, 1416688), (15568, 1327508), (16672, 1239602), (17836, 1158704), (20384, 1013866), (21952, 941447), (25298, 816928), (25529, 809536), (27092, 762832), (27244, 758576), (28912, 714812), (29176, 708344), (31136, 663754), (33344, 619801), (35672, 579352), (40768, 506933), (47411, 435904), (47677, 433472), (50596, 408464), (51058, 404768), (54184, 381416), (54488, 379288), (57824, 357406), (58352, 354172), (62272, 331877), (71344, 289676), (72419, 285376), (88543, 233408), (94822, 217952), (95354, 216736), (101192, 204232), (102116, 202384), (108368, 190708), (108976, 189644), (115648, 178703), (116704, 177086), (142688, 144838)]