8320520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16001}}^1$

素因数の和:16025

約数の個数: 32

約数和(自身を含む): 20162520

約数和(自身を除く): 11842000

約数列:

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

約数ペア:

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