3396280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 7698240

約数和(自身を除く): 4301960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 431, 788, 862, 985, 1576, 1724, 1970, 2155, 3448, 3940, 4310, 7880, 8620, 17240, 84907, 169814, 339628, 424535, 679256, 849070, 1698140, 3396280]

約数ペア:

[(1, 3396280), (2, 1698140), (4, 849070), (5, 679256), (8, 424535), (10, 339628), (20, 169814), (40, 84907), (197, 17240), (394, 8620), (431, 7880), (788, 4310), (862, 3940), (985, 3448), (1576, 2155), (1724, 1970)]