20407376

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 60

約数和(自身を含む): 44330496

約数和(自身を除く): 23923120

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 121, 127, 166, 176, 242, 254, 332, 484, 508, 664, 913, 968, 1016, 1328, 1397, 1826, 1936, 2032, 2794, 3652, 5588, 7304, 10043, 10541, 11176, 14608, 15367, 20086, 21082, 22352, 30734, 40172, 42164, 61468, 80344, 84328, 115951, 122936, 160688, 168656, 231902, 245872, 463804, 927608, 1275461, 1855216, 2550922, 5101844, 10203688, 20407376]

約数ペア:

[(1, 20407376), (2, 10203688), (4, 5101844), (8, 2550922), (11, 1855216), (16, 1275461), (22, 927608), (44, 463804), (83, 245872), (88, 231902), (121, 168656), (127, 160688), (166, 122936), (176, 115951), (242, 84328), (254, 80344), (332, 61468), (484, 42164), (508, 40172), (664, 30734), (913, 22352), (968, 21082), (1016, 20086), (1328, 15367), (1397, 14608), (1826, 11176), (1936, 10541), (2032, 10043), (2794, 7304), (3652, 5588)]