39657865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 54867456

約数和(自身を除く): 15209591

約数列:

[1, 5, 13, 23, 41, 65, 115, 205, 299, 533, 647, 943, 1495, 2665, 3235, 4715, 8411, 12259, 14881, 26527, 42055, 61295, 74405, 132635, 193453, 344851, 610121, 967265, 1724255, 3050605, 7931573, 39657865]

約数ペア:

[(1, 39657865), (5, 7931573), (13, 3050605), (23, 1724255), (41, 967265), (65, 610121), (115, 344851), (205, 193453), (299, 132635), (533, 74405), (647, 61295), (943, 42055), (1495, 26527), (2665, 14881), (3235, 12259), (4715, 8411)]