165089840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16249}}^1$

素因数の和:16389

約数の個数: 40

約数和(自身を含む): 386880000

約数和(自身を除く): 221790160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 16249, 32498, 64996, 81245, 129992, 162490, 259984, 324980, 649960, 1299920, 2063623, 4127246, 8254492, 10318115, 16508984, 20636230, 33017968, 41272460, 82544920, 165089840]

約数ペア:

[(1, 165089840), (2, 82544920), (4, 41272460), (5, 33017968), (8, 20636230), (10, 16508984), (16, 10318115), (20, 8254492), (40, 4127246), (80, 2063623), (127, 1299920), (254, 649960), (508, 324980), (635, 259984), (1016, 162490), (1270, 129992), (2032, 81245), (2540, 64996), (5080, 32498), (10160, 16249)]