261285264

素因数分解:

$2^4\times 3^8\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:182

約数の個数: 180

約数和(自身を含む): 805387440

約数和(自身を除く): 544102176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 81, 108, 114, 131, 144, 152, 162, 171, 216, 228, 243, 262, 304, 324, 342, 393, 432, 456, 486, 513, 524, 648, 684, 729, 786, 912, 972, 1026, 1048, 1179, 1296, 1368, 1458, 1539, 1572, 1944, 2052, 2096, 2187, 2358, 2489, 2736, 2916, 3078, 3144, 3537, 3888, 4104, 4374, 4617, 4716, 4978, 5832, 6156, 6288, 6561, 7074, 7467, 8208, 8748, 9234, 9432, 9956, 10611, 11664, 12312, 13122, 13851, 14148, 14934, 17496, 18468, 18864, 19912, 21222, 22401, 24624, 26244, 27702, 28296, 29868, 31833, 34992, 36936, 39824, 41553, 42444, 44802, 52488, 55404, 56592, 59736, 63666, 67203, 73872, 83106, 84888, 89604, 95499, 104976, 110808, 119472, 124659, 127332, 134406, 166212, 169776, 179208, 190998, 201609, 221616, 249318, 254664, 268812, 286497, 332424, 358416, 381996, 403218, 498636, 509328, 537624, 572994, 604827, 664848, 763992, 806436, 859491, 997272, 1075248, 1145988, 1209654, 1527984, 1612872, 1718982, 1814481, 1994544, 2291976, 2419308, 3225744, 3437964, 3628962, 4583952, 4838616, 5443443, 6875928, 7257924, 9677232, 10886886, 13751856, 14515848, 16330329, 21773772, 29031696, 32660658, 43547544, 65321316, 87095088, 130642632, 261285264]

約数ペア:

[(1, 261285264), (2, 130642632), (3, 87095088), (4, 65321316), (6, 43547544), (8, 32660658), (9, 29031696), (12, 21773772), (16, 16330329), (18, 14515848), (19, 13751856), (24, 10886886), (27, 9677232), (36, 7257924), (38, 6875928), (48, 5443443), (54, 4838616), (57, 4583952), (72, 3628962), (76, 3437964), (81, 3225744), (108, 2419308), (114, 2291976), (131, 1994544), (144, 1814481), (152, 1718982), (162, 1612872), (171, 1527984), (216, 1209654), (228, 1145988), (243, 1075248), (262, 997272), (304, 859491), (324, 806436), (342, 763992), (393, 664848), (432, 604827), (456, 572994), (486, 537624), (513, 509328), (524, 498636), (648, 403218), (684, 381996), (729, 358416), (786, 332424), (912, 286497), (972, 268812), (1026, 254664), (1048, 249318), (1179, 221616), (1296, 201609), (1368, 190998), (1458, 179208), (1539, 169776), (1572, 166212), (1944, 134406), (2052, 127332), (2096, 124659), (2187, 119472), (2358, 110808), (2489, 104976), (2736, 95499), (2916, 89604), (3078, 84888), (3144, 83106), (3537, 73872), (3888, 67203), (4104, 63666), (4374, 59736), (4617, 56592), (4716, 55404), (4978, 52488), (5832, 44802), (6156, 42444), (6288, 41553), (6561, 39824), (7074, 36936), (7467, 34992), (8208, 31833), (8748, 29868), (9234, 28296), (9432, 27702), (9956, 26244), (10611, 24624), (11664, 22401), (12312, 21222), (13122, 19912), (13851, 18864), (14148, 18468), (14934, 17496)]