13780520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26501}}^1$

素因数の和:26525

約数の個数: 32

約数和(自身を含む): 33392520

約数和(自身を除く): 19612000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 26501, 53002, 106004, 132505, 212008, 265010, 344513, 530020, 689026, 1060040, 1378052, 1722565, 2756104, 3445130, 6890260, 13780520]

約数ペア:

[(1, 13780520), (2, 6890260), (4, 3445130), (5, 2756104), (8, 1722565), (10, 1378052), (13, 1060040), (20, 689026), (26, 530020), (40, 344513), (52, 265010), (65, 212008), (104, 132505), (130, 106004), (260, 53002), (520, 26501)]