80509690

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 147732480

約数和(自身を除く): 67222790

約数列:

[1, 2, 5, 10, 79, 158, 223, 395, 446, 457, 790, 914, 1115, 2230, 2285, 4570, 17617, 35234, 36103, 72206, 88085, 101911, 176170, 180515, 203822, 361030, 509555, 1019110, 8050969, 16101938, 40254845, 80509690]

約数ペア:

[(1, 80509690), (2, 40254845), (5, 16101938), (10, 8050969), (79, 1019110), (158, 509555), (223, 361030), (395, 203822), (446, 180515), (457, 176170), (790, 101911), (914, 88085), (1115, 72206), (2230, 36103), (2285, 35234), (4570, 17617)]