81381636

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:798

約数の個数: 144

約数和(自身を含む): 258585600

約数和(自身を除く): 177203964

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 23, 28, 36, 38, 42, 46, 57, 63, 69, 76, 84, 92, 114, 126, 133, 138, 161, 171, 207, 228, 252, 266, 276, 322, 342, 399, 414, 437, 483, 532, 644, 684, 739, 798, 828, 874, 966, 1197, 1311, 1449, 1478, 1596, 1748, 1932, 2217, 2394, 2622, 2898, 2956, 3059, 3933, 4434, 4788, 5173, 5244, 5796, 6118, 6651, 7866, 8868, 9177, 10346, 12236, 13302, 14041, 15519, 15732, 16997, 18354, 20692, 26604, 27531, 28082, 31038, 33994, 36708, 42123, 46557, 50991, 55062, 56164, 62076, 67988, 84246, 93114, 98287, 101982, 110124, 118979, 126369, 152973, 168492, 186228, 196574, 203964, 237958, 252738, 294861, 305946, 322943, 356937, 393148, 475916, 505476, 589722, 611892, 645886, 713874, 884583, 968829, 1070811, 1179444, 1291772, 1427748, 1769166, 1937658, 2141622, 2260601, 2906487, 3538332, 3875316, 4283244, 4521202, 5812974, 6781803, 9042404, 11625948, 13563606, 20345409, 27127212, 40690818, 81381636]

約数ペア:

[(1, 81381636), (2, 40690818), (3, 27127212), (4, 20345409), (6, 13563606), (7, 11625948), (9, 9042404), (12, 6781803), (14, 5812974), (18, 4521202), (19, 4283244), (21, 3875316), (23, 3538332), (28, 2906487), (36, 2260601), (38, 2141622), (42, 1937658), (46, 1769166), (57, 1427748), (63, 1291772), (69, 1179444), (76, 1070811), (84, 968829), (92, 884583), (114, 713874), (126, 645886), (133, 611892), (138, 589722), (161, 505476), (171, 475916), (207, 393148), (228, 356937), (252, 322943), (266, 305946), (276, 294861), (322, 252738), (342, 237958), (399, 203964), (414, 196574), (437, 186228), (483, 168492), (532, 152973), (644, 126369), (684, 118979), (739, 110124), (798, 101982), (828, 98287), (874, 93114), (966, 84246), (1197, 67988), (1311, 62076), (1449, 56164), (1478, 55062), (1596, 50991), (1748, 46557), (1932, 42123), (2217, 36708), (2394, 33994), (2622, 31038), (2898, 28082), (2956, 27531), (3059, 26604), (3933, 20692), (4434, 18354), (4788, 16997), (5173, 15732), (5244, 15519), (5796, 14041), (6118, 13302), (6651, 12236), (7866, 10346), (8868, 9177)]