278319808

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{199}}^1$

素因数の和:306

約数の個数: 84

約数和(自身を含む): 612698800

約数和(自身を除く): 334378992

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 199, 208, 328, 398, 416, 533, 656, 796, 832, 1066, 1312, 1592, 1681, 2132, 2587, 2624, 3184, 3362, 4264, 5174, 6368, 6724, 8159, 8528, 10348, 12736, 13448, 16318, 17056, 20696, 21853, 26896, 32636, 34112, 41392, 43706, 53792, 65272, 82784, 87412, 106067, 107584, 130544, 165568, 174824, 212134, 261088, 334519, 349648, 424268, 522176, 669038, 699296, 848536, 1338076, 1398592, 1697072, 2676152, 3394144, 4348747, 5352304, 6788288, 8697494, 10704608, 17394988, 21409216, 34789976, 69579952, 139159904, 278319808]

約数ペア:

[(1, 278319808), (2, 139159904), (4, 69579952), (8, 34789976), (13, 21409216), (16, 17394988), (26, 10704608), (32, 8697494), (41, 6788288), (52, 5352304), (64, 4348747), (82, 3394144), (104, 2676152), (164, 1697072), (199, 1398592), (208, 1338076), (328, 848536), (398, 699296), (416, 669038), (533, 522176), (656, 424268), (796, 349648), (832, 334519), (1066, 261088), (1312, 212134), (1592, 174824), (1681, 165568), (2132, 130544), (2587, 107584), (2624, 106067), (3184, 87412), (3362, 82784), (4264, 65272), (5174, 53792), (6368, 43706), (6724, 41392), (8159, 34112), (8528, 32636), (10348, 26896), (12736, 21853), (13448, 20696), (16318, 17056)]