81589508

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 202704768

約数和(自身を除く): 121115260

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 41, 44, 49, 52, 71, 77, 82, 91, 98, 142, 143, 154, 164, 182, 196, 284, 286, 287, 308, 364, 451, 497, 533, 539, 572, 574, 637, 781, 902, 923, 994, 1001, 1066, 1078, 1148, 1274, 1562, 1804, 1846, 1988, 2002, 2009, 2132, 2156, 2548, 2911, 3124, 3157, 3479, 3692, 3731, 4004, 4018, 5467, 5822, 5863, 6314, 6461, 6958, 7007, 7462, 8036, 10153, 10934, 11644, 11726, 12628, 12922, 13916, 14014, 14924, 20306, 20377, 21868, 22099, 23452, 25844, 26117, 28028, 32021, 37843, 38269, 40612, 40754, 41041, 44198, 45227, 52234, 64042, 71071, 75686, 76538, 81508, 82082, 88396, 90454, 104468, 128084, 142142, 142639, 151372, 153076, 164164, 180908, 224147, 264901, 284284, 285278, 287287, 416273, 448294, 497497, 529802, 570556, 574574, 832546, 896588, 994994, 1059604, 1149148, 1569029, 1665092, 1854307, 1989988, 2913911, 3138058, 3708614, 5827822, 6276116, 7417228, 11655644, 20397377, 40794754, 81589508]

約数ペア:

[(1, 81589508), (2, 40794754), (4, 20397377), (7, 11655644), (11, 7417228), (13, 6276116), (14, 5827822), (22, 3708614), (26, 3138058), (28, 2913911), (41, 1989988), (44, 1854307), (49, 1665092), (52, 1569029), (71, 1149148), (77, 1059604), (82, 994994), (91, 896588), (98, 832546), (142, 574574), (143, 570556), (154, 529802), (164, 497497), (182, 448294), (196, 416273), (284, 287287), (286, 285278), (287, 284284), (308, 264901), (364, 224147), (451, 180908), (497, 164164), (533, 153076), (539, 151372), (572, 142639), (574, 142142), (637, 128084), (781, 104468), (902, 90454), (923, 88396), (994, 82082), (1001, 81508), (1066, 76538), (1078, 75686), (1148, 71071), (1274, 64042), (1562, 52234), (1804, 45227), (1846, 44198), (1988, 41041), (2002, 40754), (2009, 40612), (2132, 38269), (2156, 37843), (2548, 32021), (2911, 28028), (3124, 26117), (3157, 25844), (3479, 23452), (3692, 22099), (3731, 21868), (4004, 20377), (4018, 20306), (5467, 14924), (5822, 14014), (5863, 13916), (6314, 12922), (6461, 12628), (6958, 11726), (7007, 11644), (7462, 10934), (8036, 10153)]