81645564

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 260620416

約数和(自身を除く): 178974852

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 49, 52, 66, 77, 78, 84, 91, 98, 132, 143, 147, 154, 156, 182, 196, 231, 273, 286, 294, 308, 364, 429, 462, 539, 546, 572, 588, 637, 858, 924, 971, 1001, 1078, 1092, 1274, 1617, 1716, 1911, 1942, 2002, 2156, 2548, 2913, 3003, 3234, 3822, 3884, 4004, 5826, 6006, 6468, 6797, 7007, 7644, 10681, 11652, 12012, 12623, 13594, 14014, 20391, 21021, 21362, 25246, 27188, 28028, 32043, 37869, 40782, 42042, 42724, 47579, 50492, 64086, 74767, 75738, 81564, 84084, 88361, 95158, 128172, 138853, 142737, 149534, 151476, 176722, 190316, 224301, 265083, 277706, 285474, 299068, 353444, 416559, 448602, 523369, 530166, 555412, 570948, 618527, 833118, 897204, 971971, 1046738, 1060332, 1237054, 1570107, 1666236, 1855581, 1943942, 2093476, 2474108, 2915913, 3140214, 3711162, 3887884, 5831826, 6280428, 6803797, 7422324, 11663652, 13607594, 20411391, 27215188, 40822782, 81645564]

約数ペア:

[(1, 81645564), (2, 40822782), (3, 27215188), (4, 20411391), (6, 13607594), (7, 11663652), (11, 7422324), (12, 6803797), (13, 6280428), (14, 5831826), (21, 3887884), (22, 3711162), (26, 3140214), (28, 2915913), (33, 2474108), (39, 2093476), (42, 1943942), (44, 1855581), (49, 1666236), (52, 1570107), (66, 1237054), (77, 1060332), (78, 1046738), (84, 971971), (91, 897204), (98, 833118), (132, 618527), (143, 570948), (147, 555412), (154, 530166), (156, 523369), (182, 448602), (196, 416559), (231, 353444), (273, 299068), (286, 285474), (294, 277706), (308, 265083), (364, 224301), (429, 190316), (462, 176722), (539, 151476), (546, 149534), (572, 142737), (588, 138853), (637, 128172), (858, 95158), (924, 88361), (971, 84084), (1001, 81564), (1078, 75738), (1092, 74767), (1274, 64086), (1617, 50492), (1716, 47579), (1911, 42724), (1942, 42042), (2002, 40782), (2156, 37869), (2548, 32043), (2913, 28028), (3003, 27188), (3234, 25246), (3822, 21362), (3884, 21021), (4004, 20391), (5826, 14014), (6006, 13594), (6468, 12623), (6797, 12012), (7007, 11652), (7644, 10681)]