331688440

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{65293}}^1$

素因数の和:65431

約数の個数: 32

約数和(自身を含む): 752186880

約数和(自身を除く): 420498440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 65293, 130586, 261172, 326465, 522344, 652930, 1305860, 2611720, 8292211, 16584422, 33168844, 41461055, 66337688, 82922110, 165844220, 331688440]

約数ペア:

[(1, 331688440), (2, 165844220), (4, 82922110), (5, 66337688), (8, 41461055), (10, 33168844), (20, 16584422), (40, 8292211), (127, 2611720), (254, 1305860), (508, 652930), (635, 522344), (1016, 326465), (1270, 261172), (2540, 130586), (5080, 65293)]