20449208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 23580232

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 83, 92, 103, 104, 166, 184, 206, 299, 332, 412, 598, 664, 824, 1079, 1196, 1339, 1909, 2158, 2369, 2392, 2678, 3818, 4316, 4738, 5356, 7636, 8549, 8632, 9476, 10712, 15272, 17098, 18952, 24817, 30797, 34196, 49634, 61594, 68392, 99268, 111137, 123188, 196627, 198536, 222274, 246376, 393254, 444548, 786508, 889096, 1573016, 2556151, 5112302, 10224604, 20449208]

約数ペア:

[(1, 20449208), (2, 10224604), (4, 5112302), (8, 2556151), (13, 1573016), (23, 889096), (26, 786508), (46, 444548), (52, 393254), (83, 246376), (92, 222274), (103, 198536), (104, 196627), (166, 123188), (184, 111137), (206, 99268), (299, 68392), (332, 61594), (412, 49634), (598, 34196), (664, 30797), (824, 24817), (1079, 18952), (1196, 17098), (1339, 15272), (1909, 10712), (2158, 9476), (2369, 8632), (2392, 8549), (2678, 7636), (3818, 5356), (4316, 4738)]