2080520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4025

約数の個数: 32

約数和(自身を含む): 5042520

約数和(自身を除く): 2962000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4001, 8002, 16004, 20005, 32008, 40010, 52013, 80020, 104026, 160040, 208052, 260065, 416104, 520130, 1040260, 2080520]

約数ペア:

[(1, 2080520), (2, 1040260), (4, 520130), (5, 416104), (8, 260065), (10, 208052), (13, 160040), (20, 104026), (26, 80020), (40, 52013), (52, 40010), (65, 32008), (104, 20005), (130, 16004), (260, 8002), (520, 4001)]