278340272

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{941}}^1$

素因数の和:1114

約数の個数: 80

約数和(自身を含む): 654124800

約数和(自身を除く): 375784528

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 139, 152, 266, 278, 304, 532, 556, 941, 973, 1064, 1112, 1882, 1946, 2128, 2224, 2641, 3764, 3892, 5282, 6587, 7528, 7784, 10564, 13174, 15056, 15568, 17879, 18487, 21128, 26348, 35758, 36974, 42256, 52696, 71516, 73948, 105392, 125153, 130799, 143032, 147896, 250306, 261598, 286064, 295792, 500612, 523196, 915593, 1001224, 1046392, 1831186, 2002448, 2092784, 2485181, 3662372, 4970362, 7324744, 9940724, 14649488, 17396267, 19881448, 34792534, 39762896, 69585068, 139170136, 278340272]

約数ペア:

[(1, 278340272), (2, 139170136), (4, 69585068), (7, 39762896), (8, 34792534), (14, 19881448), (16, 17396267), (19, 14649488), (28, 9940724), (38, 7324744), (56, 4970362), (76, 3662372), (112, 2485181), (133, 2092784), (139, 2002448), (152, 1831186), (266, 1046392), (278, 1001224), (304, 915593), (532, 523196), (556, 500612), (941, 295792), (973, 286064), (1064, 261598), (1112, 250306), (1882, 147896), (1946, 143032), (2128, 130799), (2224, 125153), (2641, 105392), (3764, 73948), (3892, 71516), (5282, 52696), (6587, 42256), (7528, 36974), (7784, 35758), (10564, 26348), (13174, 21128), (15056, 18487), (15568, 17879)]