665996968

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:675

約数の個数: 128

約数和(自身を含む): 1639008000

約数和(自身を除く): 973011032

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 89, 91, 104, 133, 152, 178, 182, 247, 266, 356, 364, 494, 532, 541, 623, 712, 728, 988, 1064, 1082, 1157, 1246, 1691, 1729, 1976, 2164, 2314, 2492, 3382, 3458, 3787, 4328, 4628, 4984, 6764, 6916, 7033, 7574, 8099, 9256, 10279, 11837, 13528, 13832, 14066, 15148, 16198, 20558, 21983, 23674, 28132, 30296, 32396, 41116, 43966, 47348, 48149, 49231, 56264, 64792, 71953, 82232, 87932, 94696, 96298, 98462, 133627, 143906, 153881, 175864, 192596, 196924, 267254, 287812, 307762, 337043, 385192, 393848, 534508, 575624, 615524, 625937, 674086, 914831, 935389, 1069016, 1231048, 1251874, 1348172, 1829662, 1870778, 2503748, 2696344, 3659324, 3741556, 4381559, 5007496, 6403817, 7318648, 7483112, 8763118, 11892803, 12807634, 17526236, 23785606, 25615268, 35052472, 47571212, 51230536, 83249621, 95142424, 166499242, 332998484, 665996968]

約数ペア:

[(1, 665996968), (2, 332998484), (4, 166499242), (7, 95142424), (8, 83249621), (13, 51230536), (14, 47571212), (19, 35052472), (26, 25615268), (28, 23785606), (38, 17526236), (52, 12807634), (56, 11892803), (76, 8763118), (89, 7483112), (91, 7318648), (104, 6403817), (133, 5007496), (152, 4381559), (178, 3741556), (182, 3659324), (247, 2696344), (266, 2503748), (356, 1870778), (364, 1829662), (494, 1348172), (532, 1251874), (541, 1231048), (623, 1069016), (712, 935389), (728, 914831), (988, 674086), (1064, 625937), (1082, 615524), (1157, 575624), (1246, 534508), (1691, 393848), (1729, 385192), (1976, 337043), (2164, 307762), (2314, 287812), (2492, 267254), (3382, 196924), (3458, 192596), (3787, 175864), (4328, 153881), (4628, 143906), (4984, 133627), (6764, 98462), (6916, 96298), (7033, 94696), (7574, 87932), (8099, 82232), (9256, 71953), (10279, 64792), (11837, 56264), (13528, 49231), (13832, 48149), (14066, 47348), (15148, 43966), (16198, 41116), (20558, 32396), (21983, 30296), (23674, 28132)]