261492140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{143677}}^1$

素因数の和:143706

約数の個数: 48

約数和(自身を含む): 675861312

約数和(自身を除く): 414369172

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 143677, 287354, 574708, 718385, 1005739, 1436770, 1867801, 2011478, 2873540, 3735602, 4022956, 5028695, 7471204, 9339005, 10057390, 13074607, 18678010, 20114780, 26149214, 37356020, 52298428, 65373035, 130746070, 261492140]

約数ペア:

[(1, 261492140), (2, 130746070), (4, 65373035), (5, 52298428), (7, 37356020), (10, 26149214), (13, 20114780), (14, 18678010), (20, 13074607), (26, 10057390), (28, 9339005), (35, 7471204), (52, 5028695), (65, 4022956), (70, 3735602), (91, 2873540), (130, 2011478), (140, 1867801), (182, 1436770), (260, 1005739), (364, 718385), (455, 574708), (910, 287354), (1820, 143677)]