821224908

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:257

約数の個数: 216

約数和(自身を含む): 2509678080

約数和(自身を除く): 1688453172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 79, 83, 84, 98, 126, 142, 147, 158, 166, 196, 213, 237, 249, 252, 284, 294, 316, 332, 426, 441, 474, 497, 498, 553, 581, 588, 639, 711, 747, 852, 882, 948, 994, 996, 1106, 1162, 1278, 1422, 1491, 1494, 1659, 1743, 1764, 1988, 2212, 2324, 2556, 2844, 2982, 2988, 3318, 3479, 3486, 3871, 4067, 4473, 4977, 5229, 5609, 5893, 5964, 6557, 6636, 6958, 6972, 7742, 8134, 8946, 9954, 10437, 10458, 11218, 11613, 11786, 12201, 13114, 13916, 15484, 16268, 16827, 17679, 17892, 19671, 19908, 20874, 20916, 22436, 23226, 23572, 24402, 26228, 31311, 33654, 34839, 35358, 36603, 39263, 39342, 41251, 41748, 45899, 46452, 48804, 50481, 53037, 59013, 62622, 67308, 69678, 70716, 73206, 78526, 78684, 82502, 91798, 100962, 106074, 117789, 118026, 123753, 125244, 137697, 139356, 146412, 157052, 165004, 183596, 201924, 212148, 235578, 236052, 247506, 274841, 275394, 288757, 321293, 353367, 371259, 413091, 465547, 471156, 495012, 549682, 550788, 577514, 642586, 706734, 742518, 824523, 826182, 866271, 931094, 963879, 1099364, 1155028, 1285172, 1396641, 1413468, 1485036, 1649046, 1652364, 1732542, 1862188, 1927758, 2473569, 2598813, 2793282, 2891637, 3258829, 3298092, 3465084, 3855516, 4189923, 4947138, 5197626, 5586564, 5783274, 6517658, 8379846, 9776487, 9894276, 10395252, 11566548, 13035316, 16759692, 19552974, 22811803, 29329461, 39105948, 45623606, 58658922, 68435409, 91247212, 117317844, 136870818, 205306227, 273741636, 410612454, 821224908]

約数ペア:

[(1, 821224908), (2, 410612454), (3, 273741636), (4, 205306227), (6, 136870818), (7, 117317844), (9, 91247212), (12, 68435409), (14, 58658922), (18, 45623606), (21, 39105948), (28, 29329461), (36, 22811803), (42, 19552974), (49, 16759692), (63, 13035316), (71, 11566548), (79, 10395252), (83, 9894276), (84, 9776487), (98, 8379846), (126, 6517658), (142, 5783274), (147, 5586564), (158, 5197626), (166, 4947138), (196, 4189923), (213, 3855516), (237, 3465084), (249, 3298092), (252, 3258829), (284, 2891637), (294, 2793282), (316, 2598813), (332, 2473569), (426, 1927758), (441, 1862188), (474, 1732542), (497, 1652364), (498, 1649046), (553, 1485036), (581, 1413468), (588, 1396641), (639, 1285172), (711, 1155028), (747, 1099364), (852, 963879), (882, 931094), (948, 866271), (994, 826182), (996, 824523), (1106, 742518), (1162, 706734), (1278, 642586), (1422, 577514), (1491, 550788), (1494, 549682), (1659, 495012), (1743, 471156), (1764, 465547), (1988, 413091), (2212, 371259), (2324, 353367), (2556, 321293), (2844, 288757), (2982, 275394), (2988, 274841), (3318, 247506), (3479, 236052), (3486, 235578), (3871, 212148), (4067, 201924), (4473, 183596), (4977, 165004), (5229, 157052), (5609, 146412), (5893, 139356), (5964, 137697), (6557, 125244), (6636, 123753), (6958, 118026), (6972, 117789), (7742, 106074), (8134, 100962), (8946, 91798), (9954, 82502), (10437, 78684), (10458, 78526), (11218, 73206), (11613, 70716), (11786, 69678), (12201, 67308), (13114, 62622), (13916, 59013), (15484, 53037), (16268, 50481), (16827, 48804), (17679, 46452), (17892, 45899), (19671, 41748), (19908, 41251), (20874, 39342), (20916, 39263), (22436, 36603), (23226, 35358), (23572, 34839), (24402, 33654), (26228, 31311)]