18218330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 35504784

約数和(自身を除く): 17286454

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 353, 397, 706, 794, 1765, 1985, 3530, 3970, 4589, 5161, 9178, 10322, 22945, 25805, 45890, 51610, 140141, 280282, 700705, 1401410, 1821833, 3643666, 9109165, 18218330]

約数ペア:

[(1, 18218330), (2, 9109165), (5, 3643666), (10, 1821833), (13, 1401410), (26, 700705), (65, 280282), (130, 140141), (353, 51610), (397, 45890), (706, 25805), (794, 22945), (1765, 10322), (1985, 9178), (3530, 5161), (3970, 4589)]