218920052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{5153}}^1$

素因数の和:5232

約数の個数: 48

約数和(自身を含む): 444480960

約数和(自身を除く): 225560908

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 172, 247, 494, 559, 817, 988, 1118, 1634, 2236, 3268, 5153, 10306, 10621, 20612, 21242, 42484, 66989, 97907, 133978, 195814, 221579, 267956, 391628, 443158, 886316, 1272791, 2545582, 2880527, 4210001, 5091164, 5761054, 8420002, 11522108, 16840004, 54730013, 109460026, 218920052]

約数ペア:

[(1, 218920052), (2, 109460026), (4, 54730013), (13, 16840004), (19, 11522108), (26, 8420002), (38, 5761054), (43, 5091164), (52, 4210001), (76, 2880527), (86, 2545582), (172, 1272791), (247, 886316), (494, 443158), (559, 391628), (817, 267956), (988, 221579), (1118, 195814), (1634, 133978), (2236, 97907), (3268, 66989), (5153, 42484), (10306, 21242), (10621, 20612)]