20488624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{719}}^1$

素因数の和:877

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22633616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 137, 208, 274, 548, 719, 1096, 1438, 1781, 2192, 2876, 3562, 5752, 7124, 9347, 11504, 14248, 18694, 28496, 37388, 74776, 98503, 149552, 197006, 394012, 788024, 1280539, 1576048, 2561078, 5122156, 10244312, 20488624]

約数ペア:

[(1, 20488624), (2, 10244312), (4, 5122156), (8, 2561078), (13, 1576048), (16, 1280539), (26, 788024), (52, 394012), (104, 197006), (137, 149552), (208, 98503), (274, 74776), (548, 37388), (719, 28496), (1096, 18694), (1438, 14248), (1781, 11504), (2192, 9347), (2876, 7124), (3562, 5752)]