51212540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{32413}}^1$

素因数の和:32501

約数の個数: 24

約数和(自身を含む): 108911040

約数和(自身を除く): 57698500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 32413, 64826, 129652, 162065, 324130, 648260, 2560627, 5121254, 10242508, 12803135, 25606270, 51212540]

約数ペア:

[(1, 51212540), (2, 25606270), (4, 12803135), (5, 10242508), (10, 5121254), (20, 2560627), (79, 648260), (158, 324130), (316, 162065), (395, 129652), (790, 64826), (1580, 32413)]