256536618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{947}}^1$

素因数の和:1139

約数の個数: 64

約数和(自身を含む): 580995072

約数和(自身を除く): 324458454

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 151, 299, 302, 453, 598, 897, 906, 947, 1794, 1894, 1963, 2841, 3473, 3926, 5682, 5889, 6946, 10419, 11778, 12311, 20838, 21781, 24622, 36933, 43562, 45149, 65343, 73866, 90298, 130686, 135447, 142997, 270894, 283153, 285994, 428991, 566306, 849459, 857982, 1698918, 1858961, 3288931, 3717922, 5576883, 6577862, 9866793, 11153766, 19733586, 42756103, 85512206, 128268309, 256536618]

約数ペア:

[(1, 256536618), (2, 128268309), (3, 85512206), (6, 42756103), (13, 19733586), (23, 11153766), (26, 9866793), (39, 6577862), (46, 5576883), (69, 3717922), (78, 3288931), (138, 1858961), (151, 1698918), (299, 857982), (302, 849459), (453, 566306), (598, 428991), (897, 285994), (906, 283153), (947, 270894), (1794, 142997), (1894, 135447), (1963, 130686), (2841, 90298), (3473, 73866), (3926, 65343), (5682, 45149), (5889, 43562), (6946, 36933), (10419, 24622), (11778, 21781), (12311, 20838)]