661151998

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 1165933440

約数和(自身を除く): 504781442

約数列:

[1, 2, 13, 17, 26, 34, 53, 106, 167, 169, 221, 334, 338, 442, 689, 901, 1378, 1802, 2171, 2197, 2839, 2873, 4342, 4394, 5678, 5746, 8851, 8957, 11713, 17702, 17914, 23426, 28223, 36907, 37349, 56446, 73814, 74698, 115063, 116441, 150467, 152269, 230126, 232882, 300934, 304538, 366899, 479791, 733798, 959582, 1495819, 1956071, 1979497, 2991638, 3912142, 3958994, 6237283, 12474566, 19445647, 25428923, 38891294, 50857846, 330575999, 661151998]

約数ペア:

[(1, 661151998), (2, 330575999), (13, 50857846), (17, 38891294), (26, 25428923), (34, 19445647), (53, 12474566), (106, 6237283), (167, 3958994), (169, 3912142), (221, 2991638), (334, 1979497), (338, 1956071), (442, 1495819), (689, 959582), (901, 733798), (1378, 479791), (1802, 366899), (2171, 304538), (2197, 300934), (2839, 232882), (2873, 230126), (4342, 152269), (4394, 150467), (5678, 116441), (5746, 115063), (8851, 74698), (8957, 73814), (11713, 56446), (17702, 37349), (17914, 36907), (23426, 28223)]