81137784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:509

約数の個数: 128

約数和(自身を含む): 252887040

約数和(自身を除く): 171749256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 97, 104, 156, 168, 182, 194, 273, 291, 312, 364, 383, 388, 546, 582, 679, 728, 766, 776, 1092, 1149, 1164, 1261, 1358, 1532, 2037, 2184, 2298, 2328, 2522, 2681, 2716, 3064, 3783, 4074, 4596, 4979, 5044, 5362, 5432, 7566, 8043, 8148, 8827, 9192, 9958, 10088, 10724, 14937, 15132, 16086, 16296, 17654, 19916, 21448, 26481, 29874, 30264, 32172, 34853, 35308, 37151, 39832, 52962, 59748, 64344, 69706, 70616, 74302, 104559, 105924, 111453, 119496, 139412, 148604, 209118, 211848, 222906, 260057, 278824, 297208, 418236, 445812, 482963, 520114, 780171, 836472, 891624, 965926, 1040228, 1448889, 1560342, 1931852, 2080456, 2897778, 3120684, 3380741, 3863704, 5795556, 6241368, 6761482, 10142223, 11591112, 13522964, 20284446, 27045928, 40568892, 81137784]

約数ペア:

[(1, 81137784), (2, 40568892), (3, 27045928), (4, 20284446), (6, 13522964), (7, 11591112), (8, 10142223), (12, 6761482), (13, 6241368), (14, 5795556), (21, 3863704), (24, 3380741), (26, 3120684), (28, 2897778), (39, 2080456), (42, 1931852), (52, 1560342), (56, 1448889), (78, 1040228), (84, 965926), (91, 891624), (97, 836472), (104, 780171), (156, 520114), (168, 482963), (182, 445812), (194, 418236), (273, 297208), (291, 278824), (312, 260057), (364, 222906), (383, 211848), (388, 209118), (546, 148604), (582, 139412), (679, 119496), (728, 111453), (766, 105924), (776, 104559), (1092, 74302), (1149, 70616), (1164, 69706), (1261, 64344), (1358, 59748), (1532, 52962), (2037, 39832), (2184, 37151), (2298, 35308), (2328, 34853), (2522, 32172), (2681, 30264), (2716, 29874), (3064, 26481), (3783, 21448), (4074, 19916), (4596, 17654), (4979, 16296), (5044, 16086), (5362, 15132), (5432, 14937), (7566, 10724), (8043, 10088), (8148, 9958), (8827, 9192)]