213570620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{128657}}^1$

素因数の和:128749

約数の個数: 24

約数和(自身を含む): 453905424

約数和(自身を除く): 240334804

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 128657, 257314, 514628, 643285, 1286570, 2573140, 10678531, 21357062, 42714124, 53392655, 106785310, 213570620]

約数ペア:

[(1, 213570620), (2, 106785310), (4, 53392655), (5, 42714124), (10, 21357062), (20, 10678531), (83, 2573140), (166, 1286570), (332, 643285), (415, 514628), (830, 257314), (1660, 128657)]