638891006

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{2161}}^1$

素因数の和:2396

約数の個数: 32

約数和(自身を含む): 1052599968

約数和(自身を除く): 413708962

約数列:

[1, 2, 13, 26, 83, 137, 166, 274, 1079, 1781, 2158, 2161, 3562, 4322, 11371, 22742, 28093, 56186, 147823, 179363, 295646, 296057, 358726, 592114, 2331719, 3848741, 4663438, 7697482, 24572731, 49145462, 319445503, 638891006]

約数ペア:

[(1, 638891006), (2, 319445503), (13, 49145462), (26, 24572731), (83, 7697482), (137, 4663438), (166, 3848741), (274, 2331719), (1079, 592114), (1781, 358726), (2158, 296057), (2161, 295646), (3562, 179363), (4322, 147823), (11371, 56186), (22742, 28093)]