257263524

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 216

約数和(自身を含む): 806682240

約数和(自身を除く): 549418716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 47, 49, 58, 63, 84, 87, 94, 98, 107, 116, 126, 141, 147, 174, 188, 196, 203, 214, 252, 261, 282, 294, 321, 329, 348, 406, 423, 428, 441, 522, 564, 588, 609, 642, 658, 749, 812, 846, 882, 963, 987, 1044, 1218, 1284, 1316, 1363, 1421, 1498, 1692, 1764, 1827, 1926, 1974, 2247, 2303, 2436, 2726, 2842, 2961, 2996, 3103, 3654, 3852, 3948, 4089, 4263, 4494, 4606, 5029, 5243, 5452, 5684, 5922, 6206, 6741, 6909, 7308, 8178, 8526, 8988, 9212, 9309, 9541, 10058, 10486, 11844, 12267, 12412, 12789, 13482, 13818, 15087, 15729, 16356, 17052, 18618, 19082, 20116, 20727, 20972, 21721, 24534, 25578, 26964, 27636, 27927, 28623, 30174, 31458, 35203, 37236, 38164, 41454, 43442, 45261, 47187, 49068, 51156, 55854, 57246, 60348, 62916, 65163, 66787, 70406, 82908, 85869, 86884, 90522, 94374, 105609, 111708, 114492, 130326, 133574, 140812, 145841, 152047, 171738, 181044, 188748, 195489, 200361, 211218, 246421, 260652, 267148, 291682, 304094, 316827, 343476, 390978, 400722, 422436, 437523, 456141, 492842, 583364, 601083, 608188, 633654, 739263, 781956, 801444, 875046, 912282, 985684, 1020887, 1202166, 1267308, 1312569, 1368423, 1478526, 1750092, 1824564, 2041774, 2217789, 2404332, 2625138, 2736846, 2957052, 3062661, 4083548, 4435578, 5250276, 5473692, 6125322, 7146209, 8871156, 9187983, 12250644, 14292418, 18375966, 21438627, 28584836, 36751932, 42877254, 64315881, 85754508, 128631762, 257263524]

約数ペア:

[(1, 257263524), (2, 128631762), (3, 85754508), (4, 64315881), (6, 42877254), (7, 36751932), (9, 28584836), (12, 21438627), (14, 18375966), (18, 14292418), (21, 12250644), (28, 9187983), (29, 8871156), (36, 7146209), (42, 6125322), (47, 5473692), (49, 5250276), (58, 4435578), (63, 4083548), (84, 3062661), (87, 2957052), (94, 2736846), (98, 2625138), (107, 2404332), (116, 2217789), (126, 2041774), (141, 1824564), (147, 1750092), (174, 1478526), (188, 1368423), (196, 1312569), (203, 1267308), (214, 1202166), (252, 1020887), (261, 985684), (282, 912282), (294, 875046), (321, 801444), (329, 781956), (348, 739263), (406, 633654), (423, 608188), (428, 601083), (441, 583364), (522, 492842), (564, 456141), (588, 437523), (609, 422436), (642, 400722), (658, 390978), (749, 343476), (812, 316827), (846, 304094), (882, 291682), (963, 267148), (987, 260652), (1044, 246421), (1218, 211218), (1284, 200361), (1316, 195489), (1363, 188748), (1421, 181044), (1498, 171738), (1692, 152047), (1764, 145841), (1827, 140812), (1926, 133574), (1974, 130326), (2247, 114492), (2303, 111708), (2436, 105609), (2726, 94374), (2842, 90522), (2961, 86884), (2996, 85869), (3103, 82908), (3654, 70406), (3852, 66787), (3948, 65163), (4089, 62916), (4263, 60348), (4494, 57246), (4606, 55854), (5029, 51156), (5243, 49068), (5452, 47187), (5684, 45261), (5922, 43442), (6206, 41454), (6741, 38164), (6909, 37236), (7308, 35203), (8178, 31458), (8526, 30174), (8988, 28623), (9212, 27927), (9309, 27636), (9541, 26964), (10058, 25578), (10486, 24534), (11844, 21721), (12267, 20972), (12412, 20727), (12789, 20116), (13482, 19082), (13818, 18618), (15087, 17052), (15729, 16356)]