20385568

素因数分解:

$2^5\times 7^2\times {\mathrm{13001}}^1$

素因数の和:13025

約数の個数: 36

約数和(自身を含む): 46690182

約数和(自身を除く): 26304614

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13001, 26002, 52004, 91007, 104008, 182014, 208016, 364028, 416032, 637049, 728056, 1274098, 1456112, 2548196, 2912224, 5096392, 10192784, 20385568]

約数ペア:

[(1, 20385568), (2, 10192784), (4, 5096392), (7, 2912224), (8, 2548196), (14, 1456112), (16, 1274098), (28, 728056), (32, 637049), (49, 416032), (56, 364028), (98, 208016), (112, 182014), (196, 104008), (224, 91007), (392, 52004), (784, 26002), (1568, 13001)]