16641040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16001}}^1$

素因数の和:16027

約数の個数: 40

約数和(自身を含む): 41669208

約数和(自身を除く): 25028168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 16001, 32002, 64004, 80005, 128008, 160010, 208013, 256016, 320020, 416026, 640040, 832052, 1040065, 1280080, 1664104, 2080130, 3328208, 4160260, 8320520, 16641040]

約数ペア:

[(1, 16641040), (2, 8320520), (4, 4160260), (5, 3328208), (8, 2080130), (10, 1664104), (13, 1280080), (16, 1040065), (20, 832052), (26, 640040), (40, 416026), (52, 320020), (65, 256016), (80, 208013), (104, 160010), (130, 128008), (208, 80005), (260, 64004), (520, 32002), (1040, 16001)]