643463158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 1167445440

約数和(自身を除く): 523982282

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 193, 221, 247, 323, 386, 397, 442, 494, 646, 794, 2509, 3281, 3667, 4199, 5018, 5161, 6562, 6749, 7334, 7543, 8398, 10322, 13498, 15086, 42653, 47671, 62339, 76621, 85306, 87737, 95342, 98059, 124678, 128231, 153242, 175474, 196118, 256462, 810407, 996073, 1302557, 1455799, 1620814, 1667003, 1992146, 2605114, 2911598, 3334006, 16933241, 18925387, 24748583, 33866482, 37850774, 49497166, 321731579, 643463158]

約数ペア:

[(1, 643463158), (2, 321731579), (13, 49497166), (17, 37850774), (19, 33866482), (26, 24748583), (34, 18925387), (38, 16933241), (193, 3334006), (221, 2911598), (247, 2605114), (323, 1992146), (386, 1667003), (397, 1620814), (442, 1455799), (494, 1302557), (646, 996073), (794, 810407), (2509, 256462), (3281, 196118), (3667, 175474), (4199, 153242), (5018, 128231), (5161, 124678), (6562, 98059), (6749, 95342), (7334, 87737), (7543, 85306), (8398, 76621), (10322, 62339), (13498, 47671), (15086, 42653)]