256611628

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 108

約数和(自身を含む): 579462912

約数和(自身を除く): 322851284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 61, 91, 98, 122, 127, 169, 182, 196, 244, 254, 338, 364, 427, 508, 637, 676, 793, 854, 889, 1183, 1274, 1586, 1651, 1708, 1778, 2366, 2548, 2989, 3172, 3302, 3556, 4732, 5551, 5978, 6223, 6604, 7747, 8281, 10309, 11102, 11557, 11956, 12446, 15494, 16562, 20618, 21463, 22204, 23114, 24892, 30988, 33124, 38857, 41236, 42926, 46228, 54229, 72163, 77714, 80899, 85852, 100711, 108458, 144326, 150241, 155428, 161798, 201422, 216916, 288652, 300482, 323596, 379603, 402844, 505141, 600964, 704977, 759206, 1010282, 1051687, 1309243, 1409954, 1518412, 2020564, 2103374, 2618486, 2819908, 4206748, 4934839, 5236972, 9164701, 9869678, 18329402, 19739356, 36658804, 64152907, 128305814, 256611628]

約数ペア:

[(1, 256611628), (2, 128305814), (4, 64152907), (7, 36658804), (13, 19739356), (14, 18329402), (26, 9869678), (28, 9164701), (49, 5236972), (52, 4934839), (61, 4206748), (91, 2819908), (98, 2618486), (122, 2103374), (127, 2020564), (169, 1518412), (182, 1409954), (196, 1309243), (244, 1051687), (254, 1010282), (338, 759206), (364, 704977), (427, 600964), (508, 505141), (637, 402844), (676, 379603), (793, 323596), (854, 300482), (889, 288652), (1183, 216916), (1274, 201422), (1586, 161798), (1651, 155428), (1708, 150241), (1778, 144326), (2366, 108458), (2548, 100711), (2989, 85852), (3172, 80899), (3302, 77714), (3556, 72163), (4732, 54229), (5551, 46228), (5978, 42926), (6223, 41236), (6604, 38857), (7747, 33124), (8281, 30988), (10309, 24892), (11102, 23114), (11557, 22204), (11956, 21463), (12446, 20618), (15494, 16562)]