278009732

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 676368000

約数和(自身を除く): 398358268

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 109, 143, 154, 169, 182, 196, 218, 286, 308, 338, 343, 364, 436, 539, 572, 637, 676, 686, 763, 1001, 1078, 1183, 1199, 1274, 1372, 1417, 1526, 1859, 2002, 2156, 2366, 2398, 2548, 2834, 3052, 3718, 3773, 4004, 4459, 4732, 4796, 5341, 5668, 7007, 7436, 7546, 8281, 8393, 8918, 9919, 10682, 13013, 14014, 15092, 15587, 16562, 16786, 17836, 18421, 19838, 21364, 26026, 28028, 31174, 33124, 33572, 36842, 37387, 39676, 49049, 52052, 57967, 58751, 62348, 69433, 73684, 74774, 91091, 98098, 109109, 115934, 117502, 128947, 138866, 149548, 182182, 196196, 202631, 218218, 231868, 235004, 257894, 277732, 364364, 405262, 411257, 436436, 486031, 515788, 637637, 763763, 810524, 822514, 902629, 972062, 1275274, 1418417, 1527526, 1645028, 1805258, 1944124, 2550548, 2836834, 3055052, 3610516, 5346341, 5673668, 6318403, 9928919, 10692682, 12636806, 19857838, 21385364, 25273612, 39715676, 69502433, 139004866, 278009732]

約数ペア:

[(1, 278009732), (2, 139004866), (4, 69502433), (7, 39715676), (11, 25273612), (13, 21385364), (14, 19857838), (22, 12636806), (26, 10692682), (28, 9928919), (44, 6318403), (49, 5673668), (52, 5346341), (77, 3610516), (91, 3055052), (98, 2836834), (109, 2550548), (143, 1944124), (154, 1805258), (169, 1645028), (182, 1527526), (196, 1418417), (218, 1275274), (286, 972062), (308, 902629), (338, 822514), (343, 810524), (364, 763763), (436, 637637), (539, 515788), (572, 486031), (637, 436436), (676, 411257), (686, 405262), (763, 364364), (1001, 277732), (1078, 257894), (1183, 235004), (1199, 231868), (1274, 218218), (1372, 202631), (1417, 196196), (1526, 182182), (1859, 149548), (2002, 138866), (2156, 128947), (2366, 117502), (2398, 115934), (2548, 109109), (2834, 98098), (3052, 91091), (3718, 74774), (3773, 73684), (4004, 69433), (4459, 62348), (4732, 58751), (4796, 57967), (5341, 52052), (5668, 49049), (7007, 39676), (7436, 37387), (7546, 36842), (8281, 33572), (8393, 33124), (8918, 31174), (9919, 28028), (10682, 26026), (13013, 21364), (14014, 19838), (15092, 18421), (15587, 17836), (16562, 16786)]