20377164

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 49392000

約数和(自身を除く): 29014836

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 83, 123, 164, 166, 246, 249, 332, 492, 498, 499, 996, 998, 1497, 1996, 2994, 3403, 5988, 6806, 10209, 13612, 20418, 20459, 40836, 40918, 41417, 61377, 81836, 82834, 122754, 124251, 165668, 245508, 248502, 497004, 1698097, 3396194, 5094291, 6792388, 10188582, 20377164]

約数ペア:

[(1, 20377164), (2, 10188582), (3, 6792388), (4, 5094291), (6, 3396194), (12, 1698097), (41, 497004), (82, 248502), (83, 245508), (123, 165668), (164, 124251), (166, 122754), (246, 82834), (249, 81836), (332, 61377), (492, 41417), (498, 40918), (499, 40836), (996, 20459), (998, 20418), (1497, 13612), (1996, 10209), (2994, 6806), (3403, 5988)]