639689904

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{90659}}^1$

素因数の和:90687

約数の個数: 90

約数和(自身を含む): 2082550860

約数和(自身を除く): 1442860956

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 168, 196, 252, 294, 336, 392, 441, 504, 588, 784, 882, 1008, 1176, 1764, 2352, 3528, 7056, 90659, 181318, 271977, 362636, 543954, 634613, 725272, 815931, 1087908, 1269226, 1450544, 1631862, 1903839, 2175816, 2538452, 3263724, 3807678, 4351632, 4442291, 5076904, 5711517, 6527448, 7615356, 8884582, 10153808, 11423034, 13054896, 13326873, 15230712, 17769164, 22846068, 26653746, 30461424, 35538328, 39980619, 45692136, 53307492, 71076656, 79961238, 91384272, 106614984, 159922476, 213229968, 319844952, 639689904]

約数ペア:

[(1, 639689904), (2, 319844952), (3, 213229968), (4, 159922476), (6, 106614984), (7, 91384272), (8, 79961238), (9, 71076656), (12, 53307492), (14, 45692136), (16, 39980619), (18, 35538328), (21, 30461424), (24, 26653746), (28, 22846068), (36, 17769164), (42, 15230712), (48, 13326873), (49, 13054896), (56, 11423034), (63, 10153808), (72, 8884582), (84, 7615356), (98, 6527448), (112, 5711517), (126, 5076904), (144, 4442291), (147, 4351632), (168, 3807678), (196, 3263724), (252, 2538452), (294, 2175816), (336, 1903839), (392, 1631862), (441, 1450544), (504, 1269226), (588, 1087908), (784, 815931), (882, 725272), (1008, 634613), (1176, 543954), (1764, 362636), (2352, 271977), (3528, 181318), (7056, 90659)]