71548040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{11393}}^1$

素因数の和:11561

約数の個数: 32

約数和(自身を含む): 162022680

約数和(自身を除く): 90474640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 11393, 22786, 45572, 56965, 91144, 113930, 227860, 455720, 1788701, 3577402, 7154804, 8943505, 14309608, 17887010, 35774020, 71548040]

約数ペア:

[(1, 71548040), (2, 35774020), (4, 17887010), (5, 14309608), (8, 8943505), (10, 7154804), (20, 3577402), (40, 1788701), (157, 455720), (314, 227860), (628, 113930), (785, 91144), (1256, 56965), (1570, 45572), (3140, 22786), (6280, 11393)]