128912020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{5659}}^1$

素因数の和:5752

約数の個数: 48

約数和(自身を含む): 290969280

約数和(自身を除く): 162057260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5659, 5695, 11318, 11390, 22636, 22780, 28295, 56590, 96203, 113180, 192406, 379153, 384812, 481015, 758306, 962030, 1516612, 1895765, 1924060, 3791530, 6445601, 7583060, 12891202, 25782404, 32228005, 64456010, 128912020]

約数ペア:

[(1, 128912020), (2, 64456010), (4, 32228005), (5, 25782404), (10, 12891202), (17, 7583060), (20, 6445601), (34, 3791530), (67, 1924060), (68, 1895765), (85, 1516612), (134, 962030), (170, 758306), (268, 481015), (335, 384812), (340, 379153), (670, 192406), (1139, 113180), (1340, 96203), (2278, 56590), (4556, 28295), (5659, 22780), (5695, 22636), (11318, 11390)]