77662780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1063}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 176428224

約数和(自身を除く): 98765444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 562, 1063, 1124, 1405, 2126, 2810, 3653, 4252, 5315, 5620, 7306, 10630, 13819, 14612, 18265, 21260, 27638, 36530, 55276, 69095, 73060, 138190, 276380, 298703, 597406, 1194812, 1493515, 2987030, 3883139, 5974060, 7766278, 15532556, 19415695, 38831390, 77662780]

約数ペア:

[(1, 77662780), (2, 38831390), (4, 19415695), (5, 15532556), (10, 7766278), (13, 5974060), (20, 3883139), (26, 2987030), (52, 1493515), (65, 1194812), (130, 597406), (260, 298703), (281, 276380), (562, 138190), (1063, 73060), (1124, 69095), (1405, 55276), (2126, 36530), (2810, 27638), (3653, 21260), (4252, 18265), (5315, 14612), (5620, 13819), (7306, 10630)]