20518208

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:351

約数の個数: 56

約数和(自身を含む): 43452288

約数和(自身を除く): 22934080

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 53, 64, 92, 106, 184, 212, 263, 368, 424, 526, 736, 848, 1052, 1219, 1472, 1696, 2104, 2438, 3392, 4208, 4876, 6049, 8416, 9752, 12098, 13939, 16832, 19504, 24196, 27878, 39008, 48392, 55756, 78016, 96784, 111512, 193568, 223024, 320597, 387136, 446048, 641194, 892096, 1282388, 2564776, 5129552, 10259104, 20518208]

約数ペア:

[(1, 20518208), (2, 10259104), (4, 5129552), (8, 2564776), (16, 1282388), (23, 892096), (32, 641194), (46, 446048), (53, 387136), (64, 320597), (92, 223024), (106, 193568), (184, 111512), (212, 96784), (263, 78016), (368, 55756), (424, 48392), (526, 39008), (736, 27878), (848, 24196), (1052, 19504), (1219, 16832), (1472, 13939), (1696, 12098), (2104, 9752), (2438, 8416), (3392, 6049), (4208, 4876)]