81438984

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 250950960

約数和(自身を除く): 169511976

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 31, 33, 36, 44, 62, 66, 72, 88, 93, 99, 107, 124, 132, 186, 198, 214, 248, 264, 279, 321, 341, 372, 396, 428, 558, 642, 682, 744, 792, 856, 961, 963, 1023, 1116, 1177, 1284, 1364, 1922, 1926, 2046, 2232, 2354, 2568, 2728, 2883, 3069, 3317, 3531, 3844, 3852, 4092, 4708, 5766, 6138, 6634, 7062, 7688, 7704, 8184, 8649, 9416, 9951, 10571, 10593, 11532, 12276, 13268, 14124, 17298, 19902, 21142, 21186, 23064, 24552, 26536, 28248, 29853, 31713, 34596, 36487, 39804, 42284, 42372, 59706, 63426, 69192, 72974, 79608, 84568, 84744, 95139, 102827, 109461, 119412, 126852, 145948, 190278, 205654, 218922, 238824, 253704, 291896, 308481, 328383, 380556, 411308, 437844, 616962, 656766, 761112, 822616, 875688, 925443, 1131097, 1233924, 1313532, 1850886, 2262194, 2467848, 2627064, 3393291, 3701772, 4524388, 6786582, 7403544, 9048776, 10179873, 13573164, 20359746, 27146328, 40719492, 81438984]

約数ペア:

[(1, 81438984), (2, 40719492), (3, 27146328), (4, 20359746), (6, 13573164), (8, 10179873), (9, 9048776), (11, 7403544), (12, 6786582), (18, 4524388), (22, 3701772), (24, 3393291), (31, 2627064), (33, 2467848), (36, 2262194), (44, 1850886), (62, 1313532), (66, 1233924), (72, 1131097), (88, 925443), (93, 875688), (99, 822616), (107, 761112), (124, 656766), (132, 616962), (186, 437844), (198, 411308), (214, 380556), (248, 328383), (264, 308481), (279, 291896), (321, 253704), (341, 238824), (372, 218922), (396, 205654), (428, 190278), (558, 145948), (642, 126852), (682, 119412), (744, 109461), (792, 102827), (856, 95139), (961, 84744), (963, 84568), (1023, 79608), (1116, 72974), (1177, 69192), (1284, 63426), (1364, 59706), (1922, 42372), (1926, 42284), (2046, 39804), (2232, 36487), (2354, 34596), (2568, 31713), (2728, 29853), (2883, 28248), (3069, 26536), (3317, 24552), (3531, 23064), (3844, 21186), (3852, 21142), (4092, 19902), (4708, 17298), (5766, 14124), (6138, 13268), (6634, 12276), (7062, 11532), (7688, 10593), (7704, 10571), (8184, 9951), (8649, 9416)]