20540104

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 44835840

約数和(自身を除く): 24295736

約数列:

[1, 2, 4, 8, 13, 23, 26, 31, 46, 52, 62, 92, 104, 124, 184, 248, 277, 299, 403, 554, 598, 713, 806, 1108, 1196, 1426, 1612, 2216, 2392, 2852, 3224, 3601, 5704, 6371, 7202, 8587, 9269, 12742, 14404, 17174, 18538, 25484, 28808, 34348, 37076, 50968, 68696, 74152, 82823, 111631, 165646, 197501, 223262, 331292, 395002, 446524, 662584, 790004, 893048, 1580008, 2567513, 5135026, 10270052, 20540104]

約数ペア:

[(1, 20540104), (2, 10270052), (4, 5135026), (8, 2567513), (13, 1580008), (23, 893048), (26, 790004), (31, 662584), (46, 446524), (52, 395002), (62, 331292), (92, 223262), (104, 197501), (124, 165646), (184, 111631), (248, 82823), (277, 74152), (299, 68696), (403, 50968), (554, 37076), (598, 34348), (713, 28808), (806, 25484), (1108, 18538), (1196, 17174), (1426, 14404), (1612, 12742), (2216, 9269), (2392, 8587), (2852, 7202), (3224, 6371), (3601, 5704)]