18337020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23509}}^1$

素因数の和:23534

約数の個数: 48

約数和(自身を含む): 55295520

約数和(自身を除く): 36958500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23509, 47018, 70527, 94036, 117545, 141054, 235090, 282108, 305617, 352635, 470180, 611234, 705270, 916851, 1222468, 1410540, 1528085, 1833702, 3056170, 3667404, 4584255, 6112340, 9168510, 18337020]

約数ペア:

[(1, 18337020), (2, 9168510), (3, 6112340), (4, 4584255), (5, 3667404), (6, 3056170), (10, 1833702), (12, 1528085), (13, 1410540), (15, 1222468), (20, 916851), (26, 705270), (30, 611234), (39, 470180), (52, 352635), (60, 305617), (65, 282108), (78, 235090), (130, 141054), (156, 117545), (195, 94036), (260, 70527), (390, 47018), (780, 23509)]